:root {
  --bg: #0f1216;
  --card: #171c22;
  --card2: #1e242c;
  --line: #2b333d;
  --fg: #e8edf3;
  --dim: #93a1b1;
  --acc: #4da3ff;
  --ok: #3ddc84;
  --warn: #ffb648;
  --err: #ff6b6b;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Cascadia Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #182233 0%, var(--bg) 60%);
  color: var(--fg);
  font: 15px/1.6 "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh;
}

.wrap { max-width: 900px; margin: 0 auto; padding: 28px 18px 60px; }

.hero h1 { margin: 0 0 6px; font-size: 24px; letter-spacing: .3px; }
.sub { margin: 0 0 12px; color: var(--dim); font-size: 13.5px; }

.badge {
  display: inline-block; padding: 5px 12px; border-radius: 999px;
  font-size: 12.5px; border: 1px solid var(--line); background: #12171d; color: var(--dim);
}
.badge.ok { color: var(--ok); border-color: #245139; background: #10201a; }
.badge.bad { color: var(--warn); border-color: #574323; background: #1f1a10; }

.card {
  background: linear-gradient(180deg, var(--card), #141920);
  border: 1px solid var(--line); border-radius: 14px;
  padding: 20px 22px 22px; margin-top: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
}
.card h2 { margin: 0 0 8px; font-size: 17px; }
.hint { margin: 0 0 16px; color: var(--dim); font-size: 13px; }

label { display: block; margin: 12px 0 6px; font-size: 13px; color: var(--dim); }

input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 11px 13px; border-radius: 9px;
  border: 1px solid var(--line); background: #0e1318; color: var(--fg);
  font: 15px/1.4 var(--mono); outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--acc); box-shadow: 0 0 0 3px rgba(77,163,255,.15); }
input[readonly] { color: var(--dim); }

.row { display: flex; gap: 10px; align-items: center; margin-top: 16px; flex-wrap: wrap; }
.footerrow { margin-top: 22px; }

button {
  border: 1px solid var(--line); background: var(--card2); color: var(--fg);
  padding: 10px 16px; border-radius: 9px; cursor: pointer; font-size: 14px;
  transition: .15s;
}
button:hover { border-color: #43505e; background: #232b34; }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--acc); border-color: var(--acc); color: #05121f; font-weight: 600; }
button.primary:hover { background: #6bb4ff; }
button.ghost { background: transparent; }
button.danger { color: var(--err); border-color: #4a2626; }
button.danger:hover { background: #2a1616; }
button.tiny { padding: 5px 9px; font-size: 12.5px; border-radius: 7px; }

.spin { color: var(--dim); font-size: 13px; }

.msg { margin-top: 12px; font-size: 13.5px; min-height: 20px; }
.msg.err { color: var(--err); }
.msg.ok { color: var(--ok); }
.msg.info { color: var(--dim); }

.outputbox {
  margin-top: 18px; padding: 16px 18px; border-radius: 12px;
  border: 1px dashed #33465c; background: #0d1620;
}
.outputlabel { color: var(--dim); font-size: 12.5px; margin-bottom: 8px; }
.response {
  display: block; font: 700 40px/1.1 var(--mono); letter-spacing: 8px;
  color: var(--ok); min-height: 46px; word-break: break-all;
}
.outputmeta { color: var(--dim); font-size: 12.5px; margin-top: 8px; }

.clientbar {
  display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: 12.5px; color: var(--dim);
  border: 1px solid var(--line); background: #12171d; border-radius: 10px; padding: 10px 12px;
}
.clientbar b { color: var(--fg); font-weight: 600; }

.hist { margin-top: 20px; }
.hist summary { cursor: pointer; color: var(--dim); font-size: 13px; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 500; font-size: 12.5px; }
td.mono, .mono { font-family: var(--mono); }
.muted { color: var(--dim); }
.nowrap { white-space: nowrap; }

.foot { margin-top: 26px; display: flex; justify-content: space-between; color: var(--dim); font-size: 12.5px; }
.foot a { color: var(--acc); text-decoration: none; }

/* ---------------- 交流论坛 ---------------- */
.btnlink {
  display: inline-block; padding: 10px 16px; border-radius: 9px; text-decoration: none;
  background: var(--acc); color: #05121f; font-weight: 600;
}
.forumme {
  display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center;
  border: 1px solid var(--line); background: #12171d; border-radius: 10px;
  padding: 10px 12px; font-size: 12.5px; color: var(--dim);
}
.forumme b { color: var(--fg); }
.nickedit { display: flex; gap: 8px; align-items: center; flex: 1 1 280px; }
.nickedit label { margin: 0; white-space: nowrap; }
.nickedit input { max-width: 180px; padding: 6px 9px; font-size: 13px; }
.nickedit button { padding: 6px 10px; font-size: 12.5px; }

textarea { font-family: inherit; resize: vertical; }
.imgpreview { margin-top: 12px; display: flex; gap: 12px; align-items: center; }
.imgpreview img { max-height: 160px; max-width: 100%; border-radius: 10px; border: 1px solid var(--line); }

.listhead { justify-content: space-between; margin-top: 0; }
.postlist { margin-top: 6px; }
.post {
  border: 1px solid var(--line); border-radius: 12px; background: #131920;
  padding: 14px 16px; margin-top: 14px;
}
.phead, .chead { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; }
.phead .mono, .chead .mono { color: var(--dim); font-size: 12px; }
.phead button { margin-left: auto; }
.pbody, .cbody { margin-top: 8px; white-space: pre-wrap; word-break: break-word; }
.cbody { font-size: 14px; }
.pbar { display: flex; gap: 12px; align-items: center; margin-top: 10px; }
.pbar .foot { margin: 0; }
button.liked { color: var(--err); border-color: #4a2626; }
.postimg { margin-top: 10px; }
.postphoto { max-width: 100%; max-height: 460px; border-radius: 10px; border: 1px solid var(--line); display: block; }
.comments { margin-top: 12px; border-top: 1px dashed #262f39; padding-top: 10px; }
.comment { padding: 8px 10px; border-radius: 9px; background: #10151b; margin-bottom: 8px; }
.cform { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.cform .cinput { flex: 1 1 240px; }
.cform button { padding: 8px 12px; font-size: 13px; }
.cform .msg { margin: 0; }
.cfile { flex: 0 1 200px; font-size: 12.5px; color: var(--dim); }
input[type=file] { font-size: 12.5px; color: var(--dim); }

/* 管理后台 */
.tabs { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.tabs button.active { background: #22303e; border-color: var(--acc); color: var(--acc); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-top: 14px; }
.stat { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: #131920; }
.stat .n { font: 700 22px/1.2 var(--mono); }
.stat .k { color: var(--dim); font-size: 12.5px; }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.tablewrap { overflow-x: auto; margin-top: 12px; }
code.key { font-family: var(--mono); color: var(--acc); }
.loglist { max-height: 420px; overflow: auto; border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; background: #10151b; }
.loglist div { font-size: 12.5px; padding: 3px 0; border-bottom: 1px dashed #212932; }
.loglist time { color: var(--dim); font-family: var(--mono); margin-right: 8px; }
dialog { background: var(--card); color: var(--fg); border: 1px solid var(--line); border-radius: 12px; max-width: 520px; }