:root {
  --bg: #ededed;
  --card: #ffffff;
  --ink: #191919;
  --ink-2: #5c5c5c;
  --ink-3: #9a9a9a;
  --line: #e3e3e3;
  --good: #1a9e5f;
  --meh: #b8862f;
  --bad: #b4462f;
}

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

html, body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 15px;
  display: flex;
  flex-direction: column;
  max-width: 620px;
  margin: 0 auto;
  min-height: 100%;
}

/* ---------- 顶栏 ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px 10px;
}

.topRow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topRow.sub { margin-top: 8px; }

.title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .02em;
}

.progress {
  margin-left: auto;
  color: var(--ink-2);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.scope {
  color: var(--ink-3);
  font-size: 12px;
}

.switch {
  margin-left: auto;
  display: flex;
  gap: 8px;
  align-items: center;
}

select {
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink-2);
  font-size: 12px;
  padding: 0 6px;
  outline: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border-radius: 8px;
  transition: background .15s, border-color .15s, color .15s, transform .1s;
}

button.ghost {
  height: 28px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
  font-size: 12px;
}

button.primary {
  height: 40px;
  padding: 0 20px;
  border: none;
  background: #1f1f1f;
  color: #fff;
  font-size: 14px;
}

button.primary:active { transform: scale(.98); }

/* ---------- 聊天流 ---------- */
.chat {
  flex: 1;
  padding: 16px 14px 120px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.dayDivider {
  align-self: center;
  color: var(--ink-3);
  font-size: 11px;
  background: rgba(0, 0, 0, .05);
  border-radius: 999px;
  padding: 3px 10px;
}

.case {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.case .index {
  color: var(--ink-3);
  font-size: 11px;
  padding-left: 4px;
  font-variant-numeric: tabular-nums;
}

.bubble {
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .05);
}

.cover {
  position: relative;
  background: #f2f2f0;
  line-height: 0;
}

.cover img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
}

.cover .count {
  position: absolute;
  right: 8px;
  bottom: 8px;
  background: rgba(0, 0, 0, .55);
  color: #fff;
  font-size: 11px;
  line-height: 1;
  padding: 5px 8px;
  border-radius: 999px;
}

.body { padding: 14px 14px 12px; }

.body h2 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.body h2 .team {
  font-weight: 400;
  color: var(--ink-2);
  font-size: 13px;
}

.meta {
  color: var(--ink-3);
  font-size: 11.5px;
  margin-bottom: 10px;
}

.desc {
  margin: 0 0 14px;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.78;
  white-space: pre-wrap;
}

.rate {
  display: flex;
  gap: 8px;
}

.rate button {
  flex: 1;
  height: 36px;
  border: 1px solid var(--line);
  background: #fafafa;
  color: var(--ink-2);
  font-size: 13px;
}

.rate button:active { transform: scale(.98); }

.rate button.on[data-r="good"] {
  background: var(--good);
  border-color: var(--good);
  color: #fff;
}

.rate button.on[data-r="meh"] {
  background: var(--meh);
  border-color: var(--meh);
  color: #fff;
}

.rate button.on[data-r="bad"] {
  background: var(--bad);
  border-color: var(--bad);
  color: #fff;
}

textarea {
  width: 100%;
  margin-top: 10px;
  min-height: 56px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 10px;
  font-family: inherit;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink);
  background: #fcfcfc;
  outline: none;
}

textarea:focus { border-color: #c9c9c9; }

.saved {
  color: var(--good);
  font-size: 11px;
  margin-top: 8px;
  height: 14px;
}

/* ---------- 底栏 ---------- */
.bottom {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 620px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
}

.hint {
  flex: 1;
  color: var(--ink-3);
  font-size: 11.5px;
  line-height: 1.5;
}

/* ---------- 看图 ---------- */
.viewer {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .94);
  z-index: 20;
  display: flex;
  flex-direction: column;
}

.viewer.hidden { display: none; }

.viewerClose {
  align-self: flex-end;
  margin: 14px;
  height: 30px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, .28);
  background: transparent;
  color: #fff;
  font-size: 12px;
}

.viewerTrack {
  flex: 1;
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 0;
}

.viewerTrack img {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  object-fit: contain;
  scroll-snap-align: center;
}

/* ---------- 提示 ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 92px;
  transform: translateX(-50%) translateY(10px);
  background: rgba(25, 25, 25, .9);
  color: #fff;
  font-size: 12.5px;
  padding: 9px 16px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  max-width: 84%;
  text-align: center;
  z-index: 30;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.empty {
  text-align: center;
  color: var(--ink-3);
  font-size: 13px;
  padding: 60px 20px;
  line-height: 1.8;
}