:root {
  --bg: #f4f7fb;
  --paper: #ffffff;
  --ink: #1c2a3a;
  --muted: #5b6b7c;
  --line: #d7e0ea;
  --accent: #1f6f8b;
  --accent-soft: #e8f4f8;
  --ok: #1b7a4a;
  --warn: #9a4a16;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(28, 42, 58, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1200px 400px at 10% -10%, #dceef5 0%, transparent 55%),
    var(--bg);
  color: var(--ink);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

header {
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
}
.logo {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(160deg, #2a8aa8, #1f6f8b);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
}
.links { display: flex; gap: 8px; flex-wrap: wrap; }
.links a {
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 999px;
  text-decoration: none;
}
.links a:hover, .links a.active {
  background: var(--accent-soft);
  color: var(--accent);
}

main { flex: 1; padding: 36px 0 56px; }

.hero, .panel, .card {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.hero, .panel { border-radius: 22px; padding: 32px; }
.hero h1, .panel h1 { margin: 0 0 10px; font-size: 32px; letter-spacing: .04em; }
.hero p, .muted { color: var(--muted); }
.badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  margin-bottom: 12px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 22px;
}
.card {
  border-radius: var(--radius);
  padding: 20px;
}
a.card { color: inherit; text-decoration: none; display: block; }
a.card:hover { border-color: var(--accent); text-decoration: none; }
.group-title { margin: 28px 0 12px; font-size: 18px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.note {
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 12px 14px;
  color: #27566a;
  font-size: 14px;
}

.workspace {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  align-items: start;
}
.side {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 10px;
  position: sticky;
  top: 76px;
}
.side button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
}
.side button.active, .side button:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 6px; }
textarea, input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #fbfdff;
}
textarea {
  min-height: 140px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
button.btn, .btn {
  border: 0;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 9px 14px;
  cursor: pointer;
  font: inherit;
}
button.ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}
.status { min-height: 1.4em; font-size: 13px; margin-top: 8px; color: var(--ok); }
.status.err { color: var(--warn); }
pre.result {
  background: #0f1b24;
  color: #d7efe8;
  border-radius: 12px;
  padding: 14px;
  overflow: auto;
  min-height: 80px;
  font-size: 13px;
}

table.logs {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.logs th, table.logs td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 8px 6px;
  vertical-align: top;
}
table.logs td { word-break: break-all; color: var(--muted); }
.tiny { font-size: 12px; color: var(--muted); }

footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 22px 0;
  color: var(--muted);
  font-size: 13px;
}
.foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.beian { color: var(--muted); }

@media (max-width: 860px) {
  .grid, .workspace { grid-template-columns: 1fr; }
  .side { position: static; display: flex; flex-wrap: wrap; gap: 4px; }
  .side button { width: auto; }
  .hero, .panel { padding: 22px 16px; }
  .hero h1, .panel h1 { font-size: 26px; }
}