/* ==========================================================
   留言板 / 管理后台 · 样式（沿用站点设计变量，自动跟随深浅色）
   ========================================================== */

/* ---------------- 表单 ---------------- */
.form-card {
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field label {
  display: block; font-size: 13.5px; font-weight: 500;
  color: var(--text-2); margin-bottom: 7px;
}
.field .hint { font-size: 12.5px; color: var(--text-3); font-weight: 400; margin-left: 6px; }

.input, .textarea, .select {
  width: 100%; font-family: inherit; font-size: 15.5px;
  color: var(--text); background: var(--bg-2);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 15px; outline: none;
  transition: border-color .25s, box-shadow .25s, background .25s;
}
[data-theme="dark"] .input,
[data-theme="dark"] .textarea,
[data-theme="dark"] .select { background: #161617; }
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, .12);
}
.textarea { min-height: 120px; resize: vertical; line-height: 1.65; }
.field-foot {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-top: 6px; font-size: 12.5px; color: var(--text-3);
}
.counter.warn { color: #ff3b30; }

.btn[disabled] { opacity: .5; pointer-events: none; }
.btn.small { padding: 8px 16px; font-size: 14px; }
.btn.tiny { padding: 6px 13px; font-size: 13px; border-radius: 980px; }
.btn.danger { background: #ff3b30; }
.btn.danger:hover { box-shadow: 0 10px 26px rgba(255, 59, 48, .35); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------------- 留言卡片 ---------------- */
.msg-list { display: grid; gap: 16px; }
.msg-card {
  background: var(--card); border: 1px solid var(--line-2);
  border-radius: var(--radius-sm); padding: 22px 24px;
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease), border-color .3s;
}
.msg-card:hover { transform: translateY(-3px); border-color: var(--line); }
.msg-head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.msg-who { font-weight: 600; font-size: 15.5px; color: var(--text); }
.msg-when { font-size: 12.5px; color: var(--text-3); margin-left: auto; }
.msg-body {
  color: var(--text-2); font-size: 15.5px; line-height: 1.75;
  white-space: pre-wrap; word-break: break-word; margin: 0;
}
.msg-contact {
  display: inline-block; margin-top: 10px; font-size: 13px;
  color: var(--text-3); font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* 状态徽标 */
.badge {
  font-size: 11.5px; padding: 3px 10px; border-radius: 980px;
  letter-spacing: .03em; white-space: nowrap;
}
.badge.pending { background: rgba(255, 149, 0, .16); color: #ff9500; }
.badge.approved { background: rgba(52, 199, 89, .16); color: #34c759; }

/* ---------------- 工具条 ---------------- */
.bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 14px 18px; border: 1px solid var(--line-2);
  border-radius: 980px; background: var(--bg-2); margin-bottom: 22px;
}
[data-theme="dark"] .bar { background: #161617; }
.bar .grow { margin-right: auto; }
.bar .who { font-size: 14px; color: var(--text-2); }
.seg { display: flex; gap: 4px; }
.seg button {
  border: 1px solid var(--line); background: transparent; color: var(--text-2);
  padding: 7px 15px; border-radius: 980px; font-size: 13.5px; cursor: pointer;
  transition: all .25s var(--ease);
}
.seg button:hover { color: var(--text); }
.seg button.on { background: var(--text); color: var(--bg); border-color: var(--text); }

/* ---------------- 提示条 ---------------- */
.tip {
  border-radius: var(--radius-sm); padding: 14px 18px; font-size: 14.5px;
  margin-bottom: 20px; border: 1px solid transparent; line-height: 1.6;
}
.tip.info { background: rgba(0, 113, 227, .10); border-color: rgba(0, 113, 227, .25); color: var(--text-2); }
.tip.ok { background: rgba(52, 199, 89, .12); border-color: rgba(52, 199, 89, .3); color: var(--text-2); }
.tip.err { background: rgba(255, 59, 48, .10); border-color: rgba(255, 59, 48, .3); color: var(--text-2); }
.tip[hidden] { display: none; }

/* ---------------- 浮动提示 ---------------- */
.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 20px);
  background: var(--text); color: var(--bg);
  padding: 13px 24px; border-radius: 980px; font-size: 14.5px;
  box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease); z-index: 300;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------------- 登录卡 ---------------- */
.login-wrap {
  max-width: 420px; margin: 0 auto;
}
.login-wrap .brandline {
  text-align: center; font-size: 13px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.login-wrap h2 {
  text-align: center; font-size: 28px; font-weight: 700;
  letter-spacing: -.02em; margin: 0 0 8px;
}
.login-wrap .lead {
  text-align: center; color: var(--text-3); font-size: 14.5px; margin: 0 0 26px;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 760px) {
  .form-card { padding: 22px 18px; }
  .form-row { grid-template-columns: 1fr; }
  .bar { border-radius: var(--radius-sm); padding: 14px; }
  .msg-card { padding: 18px; }
  .msg-when { margin-left: 0; width: 100%; }
}