:root{
  --navy:#0b3a6f; --navy-2:#144e8c; --navy-ink:#062a52;
  --blue-50:#eef4fb; --blue-100:#dbe7f5; --line:#dfe6ef;
  --ink:#1c2733; --ink-2:#54637a; --ink-3:#8695a8;
  --ok:#127a4b; --ok-bg:#e8f6ee; --bad:#b3261e; --bad-bg:#fdecea;
  --white:#fff; --page:#f4f7fb;
  --radius:10px; --shadow:0 1px 3px rgba(16,38,64,.08), 0 8px 24px rgba(16,38,64,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Roboto,Helvetica,Arial,sans-serif;
  background:var(--page); color:var(--ink); font-size:15px; line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--navy-2)}
.wrap{max-width:1000px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.topbar{background:var(--navy);color:#fff}
.topbar .wrap{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-logo{
  width:40px;height:40px;border-radius:8px;background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  letter-spacing:.5px;flex:none;overflow:hidden;
}
.brand-logo img{width:100%;height:100%;object-fit:contain}
.brand-name{font-size:17px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:#b9cde6;margin-top:-2px}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.lang-switch{display:flex;border:1px solid rgba(255,255,255,.3);border-radius:999px;overflow:hidden}
.lang-switch button{
  border:0;background:transparent;color:#d6e4f4;padding:5px 14px;font-size:13px;cursor:pointer;
  font-family:inherit;transition:background .15s;
}
.lang-switch button.on{background:#fff;color:var(--navy);font-weight:600}
.admin-link{color:#c9daed;font-size:13px;text-decoration:none;padding:5px 10px;border-radius:6px}
.admin-link:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;padding:34px 0 78px}
.hero h1{margin:0 0 8px;font-size:27px;font-weight:600;letter-spacing:.3px}
.hero p{margin:0;color:#c5d8ee;font-size:14.5px;max-width:640px}
.hero-figure{margin-top:18px;border-radius:var(--radius);overflow:hidden;max-height:180px}
.hero-figure img{width:100%;display:block;object-fit:cover;max-height:180px}

/* ---------- query card ---------- */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.query-card{margin-top:-52px;padding:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:end}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:500}
.field label .req{color:var(--bad);margin-left:3px}
.field input{
  width:100%;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:8px;
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;transition:border-color .15s,box-shadow .15s;
}
.field input:focus{outline:0;border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(20,78,140,.12)}
.field input.err{border-color:var(--bad);background:#fffafa}
.field .msg{font-size:12px;color:var(--bad);min-height:16px;margin-top:4px}
.actions{display:flex;gap:10px}
.btn{
  height:44px;padding:0 22px;border-radius:8px;border:1px solid transparent;font-size:15px;
  font-family:inherit;cursor:pointer;font-weight:500;transition:background .15s,border-color .15s;white-space:nowrap;
}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-ink)}
.btn-primary:disabled{background:#94a8bf;cursor:not-allowed}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line)}
.btn-ghost:hover{background:var(--blue-50)}

/* ---------- result ---------- */
.result{margin-top:20px;display:none}
.result.show{display:block}
.result-head{
  display:flex;align-items:center;gap:12px;padding:16px 22px;border-bottom:1px solid var(--line);
  flex-wrap:wrap;
}
.result-head h2{margin:0;font-size:16px;font-weight:600}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  font-size:14px;font-weight:600;
}
.badge .dot{width:8px;height:8px;border-radius:50%;background:currentColor}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.kv{display:grid;grid-template-columns:150px 1fr;border-top:1px solid transparent}
.kv>div{padding:13px 22px;border-bottom:1px solid #eef2f7;font-size:14.5px;word-break:break-word}
.kv>div.k{color:var(--ink-2);background:#fafcfe;font-size:13.5px}
.kv>div.v{font-weight:500}
.result-foot{padding:14px 22px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.result-foot .ts{font-size:12.5px;color:var(--ink-3);margin-left:auto}
.dl{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;border-radius:8px;
  background:var(--blue-50);color:var(--navy);border:1px solid var(--blue-100);
  text-decoration:none;font-size:14px;font-weight:500;
}
.dl:hover{background:var(--blue-100)}
.notice{margin-top:20px;padding:16px 20px;border-radius:var(--radius);display:none;font-size:14.5px}
.notice.show{display:block}
.notice.warn{background:#fff8e6;border:1px solid #f4dfa8;color:#7a5a06}
.notice.err{background:var(--bad-bg);border:1px solid #f3c8c4;color:var(--bad)}

/* ---------- footer ---------- */
.footer{margin-top:44px;background:#0e2d50;color:#c3d5ea;padding:30px 0 22px}
.footer h3{margin:0 0 10px;font-size:15px;color:#fff;font-weight:600}
.footer .tip{white-space:pre-wrap;font-size:13.5px;line-height:1.85;color:#b6cae1;margin:0}
.footer-meta{
  margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.13);
  display:flex;gap:26px;flex-wrap:wrap;font-size:13px;color:#a9c0da;
}
.footer-copy{margin-top:14px;font-size:12.5px;color:#8ba5c2}
@media (max-width:760px){
  .hero{padding:26px 0 70px}
  .hero h1{font-size:22px}
  .form-grid{grid-template-columns:1fr}
  .actions{display:grid;grid-template-columns:1fr 90px}
  .kv{grid-template-columns:110px 1fr}
  .kv>div{padding:11px 16px}
  .topbar .wrap{height:auto;padding:10px 20px;flex-wrap:wrap;gap:10px}
  .brand-name{font-size:15px}
  .result-foot .ts{margin-left:0;width:100%}
}