:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --ink: #1f1f1d;
  --ink-2: #5f5e5a;
  --ink-3: #8a8880;
  --line: #e4e1d8;
  --accent: #185fa5;
  --accent-soft: #e6f1fb;
  --ok: #0f6e56;
  --warn: #854f0b;
  --err: #a32d2d;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 48px;
}

.hero { margin-bottom: 40px; }

.eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

h1 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lede {
  margin: 0 0 20px;
  color: var(--ink-2);
  max-width: 52ch;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-2);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-3);
  flex: none;
}
.dot-idle { background: #b4b2a9; }
.dot-ok { background: var(--ok); }
.dot-err { background: var(--err); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

h2 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
}

.hint {
  margin: 0 0 24px;
  font-size: 13px;
  color: var(--ink-3);
}

.form { margin-bottom: 28px; }

.field { margin-bottom: 16px; }

label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--ink-2);
}

input, textarea {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
  background: #fdfcf9;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}

input:focus, textarea:focus {
  border-color: var(--accent);
  background: #fff;
}

textarea { resize: vertical; min-height: 76px; }

button {
  padding: 10px 22px;
  font: inherit;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: opacity 0.15s;
}

button:hover { opacity: 0.9; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.form-msg {
  margin: 12px 0 0;
  font-size: 13px;
  min-height: 20px;
  color: var(--ink-3);
}
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--err); }

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.item-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.item-name {
  font-weight: 500;
  font-size: 14px;
}

.item-time {
  font-size: 12px;
  color: var(--ink-3);
  white-space: nowrap;
}

.item-body {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-word;
}

.empty {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}

.foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-3);
}

.foot a {
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.foot a:hover { color: var(--accent); border-color: var(--accent); }

@media (max-width: 560px) {
  .wrap { padding: 40px 18px 32px; }
  h1 { font-size: 24px; }
  .card { padding: 20px; }
}