:root{
  --bg:#f6f8fb; --card:#fff; --border:#e3e8ef; --text:#16202c; --muted:#66737f;
  --accent:#0f766e; --accent-soft:#ecfdf5; --accent-dark:#0b5d56;
  --ink:#0f172a; --warn:#b45309; --warn-soft:#fffbeb;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
background:var(--bg);color:var(--text);line-height:1.65;font-size:16px}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:920px;margin:0 auto;padding:0 18px}
header.site{background:#fff;border-bottom:1px solid var(--border)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.logo{font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.3px}
.logo span{color:var(--accent)}
nav.top a{margin-left:16px;font-size:14.5px;color:var(--muted)}
nav.top a:hover{color:var(--accent-dark)}
.hero{background:linear-gradient(135deg,#0f766e,#14b8a6);color:#fff;padding:34px 0 30px;margin-bottom:26px}
.hero h1{font-size:27px;line-height:1.25;margin-bottom:8px;letter-spacing:-.4px}
.hero p{opacity:.93;font-size:15px;max-width:720px}
main{padding-bottom:40px}
.breadcrumb{font-size:13.5px;color:var(--muted);margin:14px 0 6px}
.breadcrumb a{color:var(--muted)}
h1.page{font-size:25px;margin:10px 0 12px;letter-spacing:-.3px}
h2{font-size:19px;margin:26px 0 10px;letter-spacing:-.2px}
h3{font-size:16px;margin:18px 0 8px}
p{margin-bottom:12px}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;margin-bottom:18px}
.tool{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:12px;transition:.15s}
.tool:hover{border-color:#14b8a6;box-shadow:0 2px 10px rgba(15,118,110,.08);transform:translateY(-1px)}
.tool h3{margin:0 0 4px;font-size:16.5px}
.tool h3 a{color:var(--ink)}
.tool p{font-size:14.5px;color:var(--muted);margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.grid .tool{margin:0}
label{display:block;font-size:13.5px;font-weight:600;color:#3f4a57;margin-bottom:5px}
input,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:9px;font-size:15px;
font-family:inherit;background:#fff;color:var(--text)}
input:focus,select:focus{outline:2px solid #5eead4;outline-offset:0;border-color:#14b8a6}
.field{margin-bottom:13px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
button{background:var(--accent);color:#fff;border:0;border-radius:9px;padding:11px 20px;font-size:15px;
font-weight:600;cursor:pointer;font-family:inherit}
button:hover{background:var(--accent-dark)}
button.ghost{background:#fff;color:var(--accent-dark);border:1px solid var(--border)}
.result{margin-top:16px;border-top:1px dashed var(--border);padding-top:16px}
.big{font-size:30px;font-weight:800;color:var(--accent-dark);letter-spacing:-.5px}
.kv{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #f0f3f7;font-size:15px}
.kv:last-child{border-bottom:0}
.kv b{font-variant-numeric:tabular-nums}
.muted{color:var(--muted);font-size:13.5px}
.field small{display:block;margin-top:4px;font-weight:400}
.consent{display:flex;gap:9px;align-items:flex-start;font-size:14px;font-weight:400;color:#4b5764;
margin:4px 0 16px;line-height:1.5}
.consent input{width:17px;height:17px;margin-top:2px;flex:0 0 auto;accent-color:var(--accent)}
button:disabled{opacity:.6;cursor:default}
#pl-out .kv{padding:7px 0}
table{width:100%;border-collapse:collapse;font-size:14.5px;margin:10px 0}
th{background:#f1f5f9;text-align:left;padding:9px 11px;border:1px solid var(--border);font-size:13.5px}
td{padding:9px 11px;border:1px solid var(--border);font-variant-numeric:tabular-nums}
tr:nth-child(even) td{background:#fafbfc}
.note{background:var(--warn-soft);border-left:4px solid var(--warn);padding:12px 14px;border-radius:8px;font-size:14px;margin:14px 0}
.tip{background:var(--accent-soft);border-left:4px solid var(--accent);padding:12px 14px;border-radius:8px;font-size:14px;margin:14px 0}
.faq{margin-top:8px}
.faq details{border-bottom:1px solid var(--border);padding:11px 0}
.faq summary{cursor:pointer;font-weight:600;font-size:15px}
.faq p{margin-top:8px;font-size:14.5px;color:#4b5764}
ul,ol{padding-left:22px;margin-bottom:12px}
li{margin-bottom:6px}
footer.site{border-top:1px solid var(--border);background:#fff;padding:24px 0;margin-top:20px;font-size:13.5px;color:var(--muted)}
footer.site a{color:var(--muted);margin-right:14px}
.pill{display:inline-block;background:var(--accent-soft);color:var(--accent-dark);border-radius:999px;
padding:3px 11px;font-size:12.5px;font-weight:600;margin:0 6px 6px 0}
@media (max-width:640px){
  .row,.row3{grid-template-columns:1fr}
  .hero h1{font-size:22px}
  header.site .wrap{height:auto;padding:12px 0;flex-wrap:wrap}
  nav.top a{margin-left:12px}
}
@media print{
  header.site,.hero,footer.site,.no-print{display:none}
  body{background:#fff}
  .card{border:0;padding:0}
}