/* 三个独立工具页共用样式：配色与 /tool 工具箱保持一致 */
:root{
  --bg:#f4f7fb;
  --panel:#ffffff;
  --primary:#2563eb;
  --primary-d:#1d4ed8;
  --primary-soft:#eef4ff;
  --text:#1e293b;
  --muted:#64748b;
  --border:#e6ecf3;
  --shadow:0 8px 28px rgba(37,99,235,.07);
  --shadow-sm:0 2px 10px rgba(37,99,235,.06);
  --radius:16px;
  --ok:#16a34a;
  --err:#dc2626;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg) linear-gradient(180deg,rgba(37,99,235,.03) 0,rgba(37,99,235,0) 420px);
  background-attachment:fixed;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:14px;
  height:58px;padding:0 20px;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);
}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;white-space:nowrap}
.back:hover{color:var(--primary-d)}
.brand{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wrap{max-width:880px;margin:0 auto;padding:26px 20px 56px}
.hero{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}
.hero-icon{
  flex:0 0 46px;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:24px;
  background:linear-gradient(135deg,var(--primary-soft),#e0f2fe);box-shadow:var(--shadow-sm);
}
.hero h1{font-size:25px;margin:0 0 2px;line-height:1.35}
.hero p{margin:0;color:var(--muted);font-size:13.5px}
.card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;margin-bottom:16px;box-shadow:var(--shadow);
}
.card-title{font-size:15px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;justify-content:space-between}
.card-title .hint{font-size:12px;font-weight:500;color:var(--muted)}
.opt-title{font-size:13px;color:var(--muted);font-weight:600;margin:16px 0 8px}
.opt-title:first-of-type{margin-top:0}
.seg-row{display:flex;flex-wrap:wrap;gap:8px}
.seg{
  border:1px solid var(--border);background:#fff;color:var(--muted);
  border-radius:10px;padding:9px 14px;font-size:13.5px;cursor:pointer;
  font-family:inherit;transition:.15s;min-height:38px;
}
.seg:hover{border-color:#93c5fd;color:var(--primary)}
.seg.on{background:var(--primary-soft);border-color:#bfdbfe;color:var(--primary);font-weight:700}
textarea,input[type=text]{
  width:100%;border:1px solid var(--border);border-radius:11px;padding:11px 13px;font-size:14px;
  color:var(--text);background:#fff;font-family:inherit;outline:none;transition:.15s;resize:vertical;line-height:1.6;
}
textarea:focus,input:focus{border-color:#93c5fd;box-shadow:0 0 0 3px var(--primary-soft)}
textarea::placeholder,input::placeholder{color:#b0c0d0}
.summary{font-size:12px;color:var(--muted);text-align:right;margin-top:6px}
.btn{
  border:1px solid var(--primary);background:var(--primary);color:#fff;border-radius:11px;
  padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;
  transition:.15s;min-height:42px;
}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d)}
.btn.plain{background:#fff;color:var(--primary)}
.btn.plain:hover{background:var(--primary-soft)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.status{font-size:12.5px;color:var(--muted);margin-top:10px;min-height:18px}
.notice{
  background:var(--primary-soft);border:1px solid #dbeafe;border-radius:12px;
  padding:14px 16px;color:#475569;font-size:12.5px;line-height:1.8;margin-top:16px;
}
.foot{text-align:center;color:var(--muted);font-size:12px;margin:22px 0 0}
.foot a{color:var(--primary)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  border:1px solid var(--border);background:#fff;border-radius:9px;
  padding:7px 12px;font-size:13px;cursor:pointer;color:var(--muted);font-family:inherit;
}
.chip:hover{border-color:#93c5fd;color:var(--primary);background:var(--primary-soft)}

/* 亲戚计算器 */
.kin-result{
  position:relative;overflow:hidden;border-radius:var(--radius);padding:22px 20px 18px;
  background:linear-gradient(135deg,#1d4ed8 0%,#2563eb 48%,#38bdf8 100%);color:#fff;
  box-shadow:0 12px 30px rgba(37,99,235,.18);margin-bottom:16px;
}
.kin-result::after{
  content:'';position:absolute;right:-40px;top:-60px;width:180px;height:180px;border-radius:50%;
  background:rgba(255,255,255,.09);pointer-events:none;
}
.kin-res-head{display:flex;align-items:center;gap:10px;position:relative;z-index:1}
.kin-res-label{font-size:12.5px;opacity:.85;letter-spacing:1px}
.kin-res-badge{font-size:11.5px;background:rgba(255,255,255,.18);border-radius:20px;padding:3px 10px}
.kin-display{font-size:34px;font-weight:800;line-height:1.35;margin:10px 0 2px;position:relative;z-index:1;word-break:break-all}
.kin-sub{font-size:13px;opacity:.9;position:relative;z-index:1}
.kin-daily{font-size:13px;margin-top:10px;background:rgba(255,255,255,.14);border-radius:9px;padding:8px 11px;position:relative;z-index:1}
.kin-chips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:14px;position:relative;z-index:1}
.kin-chip{background:rgba(255,255,255,.2);border-radius:7px;padding:3px 9px;font-size:12px}
.chip-arrow{opacity:.75;font-size:14px}
.kin-res-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:11.5px;opacity:.85;position:relative;z-index:1}
.kin-keys{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.key{
  border:1px solid var(--border);background:#fff;border-radius:11px;min-height:58px;
  font-size:15px;font-weight:600;color:var(--text);cursor:pointer;font-family:inherit;transition:.15s;
}
.key:hover{border-color:#93c5fd;background:var(--primary-soft);color:var(--primary)}
.key:active{transform:scale(.97)}
.key.fn{background:#f8fafc;color:var(--muted);font-size:14px}
.key.danger{color:var(--err)}
.key.swap{color:var(--primary)}
.key.equal{background:var(--primary);border-color:var(--primary);color:#fff;font-size:20px}
.key.equal:hover{background:var(--primary-d);color:#fff}
.kin-tip{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}
.kin-detail{margin-top:16px}
.kv{display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--border);font-size:13.5px}
.kv:last-child{border-bottom:none}
.kv .k{flex:0 0 88px;color:var(--muted)}
.kv .v{flex:1;word-break:break-all}
.kin-warn{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;border-radius:11px;padding:11px 14px;font-size:13px;margin-top:12px}

/* 二维码 */
.qr-box{
  display:flex;align-items:center;justify-content:center;background:#fff;
  border:1px solid var(--border);border-radius:14px;padding:16px;margin-top:16px;min-height:180px;
}
#qrCanvas{max-width:100%;height:auto;display:block;image-rendering:pixelated;border-radius:4px}
.qr-meta{font-size:12px;color:var(--muted);text-align:center;margin-top:10px}

/* 翻译 */
.tr-input{min-height:120px}
.tr-result{
  background:#f8fafc;border:1px solid var(--border);border-radius:11px;
  padding:14px;font-size:15px;line-height:1.8;min-height:80px;white-space:pre-wrap;word-break:break-word;
}
.tr-result.empty{color:#b0c0d0}
.sample-group{margin-top:12px}
.sample-group-h{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:7px}
.sample-grid{display:flex;flex-wrap:wrap;gap:7px}

@media (max-width:600px){
  .topbar{height:54px;padding:0 14px;gap:10px}
  .brand{font-size:12px}
  .wrap{padding:18px 14px 44px}
  .hero{gap:11px}
  .hero-icon{flex-basis:40px;width:40px;height:40px;font-size:21px}
  .hero h1{font-size:21px}
  .hero p{font-size:12.5px}
  .card{padding:15px}
  .kin-result{padding:18px 15px 15px}
  .kin-display{font-size:29px}
  .kin-keys{gap:7px}
  .key{min-height:50px;font-size:13.5px}
  .key.fn{font-size:12.5px}
  .seg{padding:8px 11px;font-size:12.5px;min-height:36px}
  .btn-row .btn{flex:1 1 44%}
  .kv .k{flex-basis:76px}
  .qr-box{padding:10px}
}