:root {
  --ink: #1c2333;
  --muted: #66707f;
  --line: #e3e7ee;
  --bg: #f4f6fa;
  --card: #ffffff;
  --accent: #1f5fd6;
  --warn: #f5b301;
  --danger: #d64545;
  --ok: #2e9e5b;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: "Segoe UI", "Microsoft JhengHei", "PingFang TC", sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.55;
}
header {
  background: linear-gradient(135deg, #14213d, #1f3a68);
  color: #fff; padding: 26px 20px; text-align: center;
}
header h1 { margin: 0 0 6px; font-size: 26px; letter-spacing: 1px; }
header .subtitle { margin: 0; color: #c6d2e8; font-size: 14px; }
main { max-width: 860px; margin: 22px auto; padding: 0 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; margin-bottom: 16px; box-shadow: 0 1px 3px rgba(20,33,61,.06);
}
.card h2 { margin: 0 0 12px; font-size: 16px; }
textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 12px; font-size: 15px; resize: vertical; font-family: inherit;
}
textarea:focus, input:focus, select:focus { outline: 2px solid rgba(31,95,214,.35); border-color: var(--accent); }
.modes { display: flex; gap: 18px; margin-top: 12px; flex-wrap: wrap; }
.modes label { display: flex; align-items: center; gap: 6px; cursor: pointer; font-size: 15px; }
.provider { border-top: 1px dashed var(--line); padding: 12px 0; }
.provider:first-of-type { border-top: none; }
.pcheck { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; cursor: pointer; }
.pcheck em { font-style: normal; color: var(--muted); font-size: 12.5px; }
.prow { display: flex; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.prow input[type="text"], .prow input[type="password"] { flex: 1; min-width: 200px; }
input, select, button { font-size: 14px; font-family: inherit; }
input, select {
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: #fff;
}
select { min-width: 240px; }
button {
  border: 1px solid var(--line); background: #f0f3f8; color: var(--ink);
  border-radius: 8px; padding: 8px 14px; cursor: pointer; transition: background .15s;
}
button:hover { background: #e2e8f2; }
button:disabled { opacity: .55; cursor: not-allowed; }
button.primary {
  background: var(--danger); border-color: var(--danger); color: #fff;
  font-size: 16px; padding: 10px 26px; font-weight: 600;
}
button.primary:hover { background: #b93a3a; }
.actions {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; margin: 4px 0 18px; flex-wrap: wrap;
}
.actions label { font-size: 14px; display: flex; align-items: center; gap: 8px; }
.hidden { display: none; }
.err { color: var(--danger); background: #fdf0f0; border: 1px solid #f2c9c9; border-radius: 8px; padding: 10px 12px; }
.bigindex { font-size: 64px; font-weight: 800; color: var(--danger); text-align: center; padding: 6px 0 14px; }
.bigindex small { font-size: 15px; color: var(--muted); font-weight: 400; }
.rcards { display: grid; gap: 10px; }
.rcard { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: #fbfcfe; }
.rcard.winbg { border-color: var(--ok); background: #f2faf5; }
.rcard.err { background: #fdf6f6; }
.rhead { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; gap: 10px; }
.rindex { font-size: 22px; font-weight: 800; color: var(--danger); }
.win { color: var(--ok); font-weight: 700; }
.rtext { white-space: pre-wrap; word-break: break-word; font-size: 15px; }
.rreason { color: var(--muted); font-size: 13px; margin-top: 6px; }
.rsusp { font-size: 13px; color: var(--ink); margin-top: 4px; }
.finalbox {
  border: 2px solid var(--ok); background: #f2faf5; border-radius: 10px;
  padding: 14px 16px; margin-bottom: 14px;
}
.finallabel { font-size: 13px; color: var(--ok); font-weight: 700; margin-bottom: 6px; }