:root {
  --mb-bg: #f6f7f9;
  --mb-card: #ffffff;
  --mb-line: #e4e7ec;
  --mb-text: #1f2328;
  --mb-muted: #6b7280;
  --mb-primary: #1f5c8b;
  --mb-primary-dark: #17456a;
  --mb-soft: #f0f5fa;
  --mb-radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--mb-bg);
  color: var(--mb-text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.mb-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

/* ---------------- 标题 ---------------- */
.mb-head { margin-bottom: 20px; }
.mb-head h1 { font-size: 24px; margin: 0 0 6px; letter-spacing: .01em; }
.mb-head p { margin: 0; color: var(--mb-muted); font-size: 14px; }

/* ---------------- 表单 ---------------- */
.mb-form {
  background: var(--mb-card);
  border: 1px solid var(--mb-line);
  border-radius: var(--mb-radius);
  padding: 22px;
}

.mb-row { margin-bottom: 16px; }
.mb-row label {
  display: block;
  font-size: 13px;
  color: var(--mb-muted);
  margin-bottom: 6px;
}
.mb-label-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.mb-label-line label { margin-bottom: 6px; }
.req { color: #c0392b; }

input[type="text"],
textarea {
  width: 100%;
  font: inherit;
  color: inherit;
  background: #fff;
  border: 1px solid var(--mb-line);
  border-radius: 8px;
  padding: 10px 12px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input[type="text"]:focus,
textarea:focus {
  border-color: var(--mb-primary);
  box-shadow: 0 0 0 3px rgba(31, 92, 139, .12);
}
textarea { min-height: 118px; resize: vertical; line-height: 1.7; }

.mb-counter { font-size: 12px; color: var(--mb-muted); font-variant-numeric: tabular-nums; }

.mb-row--inline {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.mb-row--inline label { margin: 0; }
.mb-row--inline input { width: 88px; }
.mb-captcha-q {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: .04em;
  background: var(--mb-soft);
  border: 1px solid var(--mb-line);
  border-radius: 6px;
  padding: 6px 12px;
  color: var(--mb-primary-dark);
}
.mb-link {
  background: none;
  border: none;
  color: var(--mb-primary);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

/* 蜜罐字段：视觉上不可见，但不要用 display:none（部分机器人会跳过） */
.mb-hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.mb-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
}
.mb-btn {
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--mb-primary);
  border: none;
  border-radius: 8px;
  padding: 11px 26px;
  cursor: pointer;
  transition: background .15s;
}
.mb-btn:hover { background: var(--mb-primary-dark); }
.mb-btn:disabled { opacity: .6; cursor: not-allowed; }
.mb-tip { font-size: 13px; }
.mb-tip.ok { color: #1a7f45; }
.mb-tip.err { color: #c0392b; }

/* ---------------- 列表 ---------------- */
.mb-list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mb-item {
  background: var(--mb-card);
  border: 1px solid var(--mb-line);
  border-radius: var(--mb-radius);
  padding: 16px 18px;
}
.mb-item-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}
.mb-name { font-weight: 600; color: var(--mb-primary-dark); }
.mb-time {
  font-size: 12px;
  color: var(--mb-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.mb-text {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.mb-replies {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 3px solid var(--mb-soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mb-reply {
  background: var(--mb-soft);
  border-radius: 8px;
  padding: 10px 12px;
}
.mb-reply-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}
.mb-admin { font-size: 12px; font-weight: 600; color: #8a5a00; }
.mb-empty {
  color: var(--mb-muted);
  text-align: center;
  padding: 36px 0;
  margin: 0;
}

/* ---------------- 分页 ---------------- */
.mb-pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}
.mb-page {
  font: inherit;
  font-size: 14px;
  background: #fff;
  border: 1px solid var(--mb-line);
  border-radius: 6px;
  padding: 6px 14px;
  cursor: pointer;
  color: inherit;
}
.mb-page:hover:not(:disabled) { border-color: var(--mb-primary); color: var(--mb-primary); }
.mb-page:disabled { opacity: .45; cursor: not-allowed; }
.mb-page-info { font-size: 13px; color: var(--mb-muted); font-variant-numeric: tabular-nums; }

@media (max-width: 520px) {
  .mb-wrap { padding: 20px 14px 48px; }
  .mb-form { padding: 18px 16px; }
  .mb-item { padding: 14px; }
  .mb-item-head { flex-direction: column; gap: 2px; align-items: flex-start; }
}