:root {
  --bg: #f8f4ea;
  --surface: #ffffff;
  --text: #15181a;
  --muted: #6f7472;
  --line: #e8e8e0;
  --accent: #6c9bff;
  --on-accent: #0b1b33;
  --accent-soft: rgba(108, 155, 255, 0.14);
  --danger: #d9534f;
  --shadow: 0 1px 2px rgba(21, 24, 26, 0.04), 0 6px 18px rgba(21, 24, 26, 0.06);
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #070a13;
    --surface: #101624;
    --text: #e7edf7;
    --muted: #96a2b8;
    --line: #202839;
    --accent: #3986f5;
    --on-accent: #ffffff;
    --accent-soft: rgba(57, 134, 245, 0.18);
    --danger: #ff6b6b;
    --shadow: 0 0 0 1px #202839;
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 22px 16px calc(40px + env(safe-area-inset-bottom));
}

.head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 6px 2px 18px;
}

.head h1 {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: 0.2px;
  margin: 0;
}

.head .sub {
  font-size: 12px;
  color: var(--muted);
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}

/* ---------------- 表单 ---------------- */

.row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

input[type="text"], input[type="password"], textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

input:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 96px; }
::placeholder { color: var(--muted); opacity: 0.8; }

#nick { flex: 1; min-width: 0; }

.kinds { display: flex; gap: 8px; flex: none; }

.kind {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 14px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.kind.on {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.imgrow { display: flex; align-items: center; gap: 10px; margin-top: 10px; min-height: 34px; }

.pick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 6px 12px;
  cursor: pointer;
}

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

.thumb { position: relative; width: 56px; height: 56px; border-radius: 10px; overflow: hidden; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb button {
  position: absolute; top: 2px; right: 2px;
  width: 18px; height: 18px; line-height: 16px;
  border: none; border-radius: 50%;
  background: rgba(0, 0, 0, 0.55); color: #fff;
  font-size: 12px; cursor: pointer; padding: 0;
}

.sendrow { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 12px; }

.hint { font-size: 12.5px; color: var(--muted); flex: 1; text-align: left; }
.hint.ok { color: #2e9e5b; }
.hint.bad { color: var(--danger); }

button.primary {
  border: none;
  background: var(--accent);
  color: var(--on-accent);
  font: inherit;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 12px;
  cursor: pointer;
}

button.primary:disabled { opacity: 0.55; cursor: default; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* ---------------- 筛选 ---------------- */

.filters { display: flex; gap: 8px; margin: 4px 2px 14px; }

.f {
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  padding: 6px 2px;
  margin-right: 6px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.f.on { color: var(--text); font-weight: 600; border-bottom-color: var(--accent); }

/* ---------------- 留言 ---------------- */

.msg .mhead {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.badge {
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.badge.review { background: rgba(46, 158, 91, 0.14); color: #2e9e5b; }
@media (prefers-color-scheme: dark) {
  .badge.review { background: rgba(76, 200, 130, 0.16); color: #4cc882; }
}

.nick { color: var(--text); font-weight: 600; }
.floor { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; }

.msg .body { margin: 0; white-space: pre-wrap; word-break: break-word; }
.msg .pic { display: block; max-width: 100%; border-radius: 12px; margin-top: 10px; }

.reply {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--accent-soft);
  font-size: 14px;
}

.reply .rlabel { font-size: 11.5px; color: var(--accent); font-weight: 600; display: block; margin-bottom: 2px; }
.reply p { margin: 0; white-space: pre-wrap; word-break: break-word; }
.reply + .reply { margin-top: 8px; }

.empty { text-align: center; color: var(--muted); font-size: 13.5px; margin: 34px 0; }

.pinned-tag {
  font-size: 11px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0 5px;
}

/* ---------------- 管理后台 ---------------- */

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tabs { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }

.tab {
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 9px;
  cursor: pointer;
}

.tab.on { background: var(--surface); color: var(--text); font-weight: 600; box-shadow: var(--shadow); }

.switch { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.switch input { width: 18px; height: 18px; accent-color: var(--accent); }

.meta { font-size: 12px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.st { font-size: 11px; padding: 1px 7px; border-radius: 6px; border: 1px solid var(--line); }
.st.pending { color: #c8891c; border-color: rgba(200, 137, 28, 0.45); }
.st.public { color: #2e9e5b; border-color: rgba(46, 158, 91, 0.45); }
.st.hidden { color: var(--muted); }

.acts { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: 9px;
  cursor: pointer;
}

.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.danger { color: var(--danger); border-color: rgba(217, 83, 79, 0.4); }

.replybox { margin-top: 10px; display: flex; gap: 8px; align-items: flex-start; }
.replybox[hidden] { display: none; }
.replybox textarea { flex: 1; min-width: 0; min-height: 60px; font-size: 14px; }
.replybox .btn { flex: none; white-space: nowrap; align-self: stretch; }

.login { max-width: 360px; margin: 12vh auto 0; }
.login h1 { font-size: 20px; margin: 0 0 16px; }
.login .row2 { display: flex; flex-direction: column; gap: 12px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: rgba(20, 22, 26, 0.9);
  color: #fff;
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 99;
}

.toast.show { opacity: 1; }

@media (max-width: 420px) {
  .row { flex-wrap: wrap; }
  #nick { flex: 1 1 100%; }
}