/* ==========================================================================
   彩月终端 · 设置面板改版
   单一入口，作用域限定在 #settings-sheet 内，用来终结 styles.css 里
   多处 .settings-sheet / .cloud-settings-card 互相覆盖的混乱。

   设计沿用「晨光和纸」：纸色底 + 衬线标题 + 墨色主按钮。
   DOM 契约不变：所有 input / select / button 的 id 保持原样，app.js 无需改动。
   ========================================================================== */

#settings-sheet {
  /* 局部 token，前缀 --s-，避免和 styles.css 的全局变量打架 */
  --s-paper: #f5f2eb;
  --s-paper-2: #fbf9f4;
  --s-card: #fffdf8;
  --s-line: #e4ded1;
  --s-line-2: #eee9de;
  --s-ink: #1f2226;
  --s-ink-2: #4a4f58;
  --s-ink-3: #8a8f98;
  --s-accent: #748fb8;
  --s-accent-50: #eef2f8;
  --s-r-sm: 6px;
  --s-r-md: 12px;
  --s-r-lg: 20px;
  --s-r-pill: 999px;
  --s-sh-1: 0 1px 2px rgba(31, 34, 38, .06);
  --s-sh-2: 0 8px 24px rgba(31, 34, 38, .08);
  --s-sh-3: 0 20px 48px rgba(31, 34, 38, .16);
  --s-serif: "Noto Serif SC", "Songti SC", serif;
  --s-kai: "LXGW WenKai TC", "LXGW WenKai", "Kaiti SC", serif;
  --s-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

/* ---- 面板外壳：居中卡片，取代原先铺满视口的样子 ---- */
#settings-sheet.glass-panel {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(31, 34, 38, .32);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  z-index: 60;
}

/* 唯一的一张卡片：头 / 分段导航 / 内容都在它里面，避免出现三条分离的白条 */
#settings-sheet > .settings-panel {
  width: min(560px, 100%);
  max-height: calc(100dvh - 32px);
  display: flex;
  flex-direction: column;
  background: var(--s-paper-2);
  border-radius: var(--s-r-lg);
  box-shadow: var(--s-sh-3);
  overflow: hidden;
}

#settings-sheet > .settings-panel > .panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  padding: 18px 24px 10px;
  background: transparent;
  border: 0;
  border-radius: 0;
}

#settings-sheet > .settings-panel > .panel-head h3 {
  margin: 0;
  font: 700 22px/1.3 var(--s-serif);
  color: var(--s-ink);
  letter-spacing: .01em;
}

#settings-sheet > .settings-panel > .panel-head .ghost-btn.small-btn {
  height: 32px;
  padding: 0 14px;
  border: 0;
  border-radius: var(--s-r-pill);
  background: transparent;
  color: var(--s-ink-2);
  font: 500 13px var(--s-sans);
  box-shadow: inset 0 0 0 1px var(--s-line);
}
#settings-sheet > .settings-panel > .panel-head .ghost-btn.small-btn:hover {
  background: rgba(31, 34, 38, .05);
  color: var(--s-ink);
}

/* ---- 分段导航：模型 / 聊天 / 外观 / 数据 ---- */
#settings-sheet .settings-seg {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 4px;
  background: var(--s-line-2);
  border: 0;
  border-radius: var(--s-r-pill);
  /* 用 margin 让它和卡片左右边缘对齐 */
  margin: 0 24px 16px;
}

#settings-sheet .settings-seg button {
  flex: 1;
  padding: 7px 6px;
  border: 0;
  border-radius: var(--s-r-pill);
  background: transparent;
  color: var(--s-ink-2);
  font: 500 13px var(--s-sans);
  transition: background .15s ease, color .15s ease, box-shadow .15s ease;
}
#settings-sheet .settings-seg button:hover { color: var(--s-ink); }
#settings-sheet .settings-seg button[aria-selected="true"] {
  background: var(--s-card);
  color: var(--s-ink);
  font-weight: 600;
  box-shadow: var(--s-sh-1);
}

/* ---- 内容区：滚动，不再自带背景（背景由卡片提供） ---- */
#settings-sheet .settings-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0 24px 20px;
  background: transparent;
  border-radius: 0;
}

#settings-sheet .settings-tabpanel[hidden] { display: none !important; }

#settings-sheet .cloud-settings-card {
  margin: 0 0 12px;
  padding: 16px;
  background: var(--s-card);
  border: 1px solid var(--s-line-2);
  border-radius: var(--s-r-md);
  box-shadow: var(--s-sh-1);
}

#settings-sheet .cloud-settings-card > h4,
#settings-sheet .settings-group-title {
  margin: 0 0 12px;
  font: 600 15px/1.4 var(--s-serif);
  color: var(--s-ink);
}

#settings-sheet .cloud-settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0;
}

#settings-sheet .cloud-settings-grid > .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

/* 接口格式是单列，占满整行 */
#settings-sheet .cloud-settings-grid > .field:has(select) { grid-column: 1 / -1; }

#settings-sheet .cloud-settings-grid > .field > span {
  font: 500 13px var(--s-sans);
  color: var(--s-ink-2);
}

#settings-sheet .cloud-settings-grid input,
#settings-sheet .cloud-settings-grid select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--s-line);
  border-radius: var(--s-r-sm);
  background: var(--s-paper-2);
  font: 14px var(--s-sans);
  color: var(--s-ink);
  box-shadow: none;
}

#settings-sheet .cloud-settings-grid input::placeholder { color: var(--s-ink-3); }

#settings-sheet .cloud-settings-grid input:focus,
#settings-sheet .cloud-settings-grid select:focus {
  outline: 0;
  border-color: var(--s-accent);
  box-shadow: 0 0 0 3px rgba(116, 143, 184, .16);
}

/* ---- 底部动作区 ---- */
#settings-sheet .settings-foot {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  border: 0;
}

#settings-sheet .settings-foot .secondary-btn {
  height: 40px;
  padding: 0 20px;
  border: 0;
  border-radius: var(--s-r-pill);
  background: var(--s-ink);
  color: #fff;
  font: 500 14px var(--s-sans);
  box-shadow: none;
}
#settings-sheet .settings-foot .secondary-btn:hover { background: #33383f; }

/* ---- 说明文字 ---- */
#settings-sheet #cloud-config-note,
#settings-sheet .muted-note {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 10px 0 0;
  font: 12px/1.5 var(--s-sans);
  color: var(--s-ink-3);
}

/* ---- 窄屏：单列 ---- */
@media (max-width: 620px) {
  #settings-sheet .cloud-settings-grid { grid-template-columns: 1fr; }
  #settings-sheet .cloud-settings-grid > .field:has(select) { grid-column: auto; }
  #settings-sheet .settings-seg { margin: 0 16px 12px; }
  #settings-sheet .settings-body { padding: 0 16px 16px; }
  #settings-sheet > .settings-panel > .panel-head { padding: 16px 16px 8px; }
}

/* 兜底：不支持 :has() 时接口格式仍能正常显示 */
@supports not selector(:has(*)) {
  #settings-sheet .cloud-settings-grid > .field:nth-child(5) { grid-column: 1 / -1; }
}

/* ==========================================================================
   设置项控件：开关 / 分段 / 滑块 / 只读行 / 工具行
   全部作用域在 #settings-sheet 内
   ========================================================================== */

/* ---- 设置行（开关类）：左标签 + 右控件 ---- */
#settings-sheet .set-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--s-line-2);
}
#settings-sheet .set-row:last-child { border-bottom: 0; padding-bottom: 0; }
#settings-sheet .set-row:first-of-type { padding-top: 0; }

#settings-sheet .set-row__text { min-width: 0; }
#settings-sheet .set-row__label {
  display: block;
  font: 500 14px/1.4 var(--s-sans);
  color: var(--s-ink);
}
#settings-sheet .set-row__hint {
  display: block;
  margin-top: 2px;
  font: 12px/1.5 var(--s-sans);
  color: var(--s-ink-3);
}

/* ---- 开关 ---- */
#settings-sheet .switch {
  position: relative;
  flex: none;
  width: 44px;
  height: 26px;
  border: 1px solid var(--s-line);
  border-radius: var(--s-r-pill);
  background: var(--s-line-2);
  cursor: pointer;
  transition: background .18s ease, border-color .18s ease;
  padding: 0;
}
#settings-sheet .switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--s-sh-1);
  transition: transform .18s cubic-bezier(.2, .8, .3, 1);
}
#settings-sheet .switch[aria-checked="true"] {
  background: var(--s-accent);
  border-color: var(--s-accent);
}
#settings-sheet .switch[aria-checked="true"]::after { transform: translateX(18px); }
#settings-sheet .switch:focus-visible { outline: 2px solid var(--s-accent); outline-offset: 2px; }

/* ---- 分段控件（行内小号） ---- */
#settings-sheet .set-seg {
  display: inline-flex;
  flex: none;
  gap: 2px;
  padding: 3px;
  background: var(--s-line-2);
  border-radius: var(--s-r-pill);
}
#settings-sheet .set-seg button {
  padding: 5px 12px;
  border: 0;
  border-radius: var(--s-r-pill);
  background: transparent;
  color: var(--s-ink-2);
  font: 500 12.5px var(--s-sans);
  white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
#settings-sheet .set-seg button[aria-pressed="true"] {
  background: var(--s-card);
  color: var(--s-ink);
  font-weight: 600;
  box-shadow: var(--s-sh-1);
}

/* ---- 数字 / 滑块行 ---- */
#settings-sheet .set-range {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  width: 190px;
}
#settings-sheet .set-range input[type="range"] {
  flex: 1;
  min-width: 0;
  height: 4px;
  margin: 0;
  border: 0;
  border-radius: var(--s-r-pill);
  background: var(--s-line);
  appearance: none;
  -webkit-appearance: none;
  box-shadow: none;
}
#settings-sheet .set-range input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 50%;
  background: var(--s-accent);
  box-shadow: var(--s-sh-1);
  cursor: pointer;
}
#settings-sheet .set-range input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 50%;
  background: var(--s-accent);
  cursor: pointer;
}
#settings-sheet .set-range__val {
  flex: none;
  min-width: 42px;
  text-align: right;
  font: 500 13px var(--s-sans);
  color: var(--s-ink-2);
  font-variant-numeric: tabular-nums;
}

/* ---- 只读信息行 ---- */
#settings-sheet .set-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid var(--s-line-2);
}
#settings-sheet .set-info:last-child { border-bottom: 0; padding-bottom: 0; }
#settings-sheet .set-info__label {
  font: 500 13px var(--s-sans);
  color: var(--s-ink-2);
}
#settings-sheet .set-info__value {
  font: 13px var(--s-sans);
  color: var(--s-ink);
  font-variant-numeric: tabular-nums;
  text-align: right;
  overflow-wrap: anywhere;
}
#settings-sheet .set-info__value code {
  font: 12px ui-monospace, "SFMono-Regular", Consolas, monospace;
  color: var(--s-ink-2);
  background: var(--s-line-2);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ---- 工具行（数据 tab 的按钮） ---- */
#settings-sheet .set-tool {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--s-line-2);
}
#settings-sheet .set-tool:last-child { border-bottom: 0; padding-bottom: 0; }
#settings-sheet .set-tool__btn {
  flex: none;
  height: 34px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--s-r-pill);
  background: var(--s-line-2);
  color: var(--s-ink);
  font: 500 13px var(--s-sans);
  box-shadow: inset 0 0 0 1px var(--s-line);
  transition: background .15s ease;
}
#settings-sheet .set-tool__btn:hover { background: #e6e0d3; }
#settings-sheet .set-tool__btn--danger { color: #a4463f; box-shadow: inset 0 0 0 1px #e3c9c5; }
#settings-sheet .set-tool__btn--danger:hover { background: #f6e9e7; }
#settings-sheet .set-tool__btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---- 文本框（系统提示词） ---- */
#settings-sheet .set-textarea {
  width: 100%;
  min-height: 76px;
  padding: 10px 12px;
  border: 1px solid var(--s-line);
  border-radius: var(--s-r-sm);
  background: var(--s-paper-2);
  font: 14px/1.6 var(--s-sans);
  color: var(--s-ink);
  resize: vertical;
  box-shadow: none;
}
#settings-sheet .set-textarea::placeholder { color: var(--s-ink-3); }
#settings-sheet .set-textarea:focus {
  outline: 0;
  border-color: var(--s-accent);
  box-shadow: 0 0 0 3px rgba(116, 143, 184, .16);
}

/* ---- 窄屏：设置行改为上下堆叠 ---- */
@media (max-width: 620px) {
  #settings-sheet .set-row { flex-direction: column; align-items: stretch; gap: 8px; }
  #settings-sheet .set-range { width: 100%; }
  #settings-sheet .set-seg { align-self: flex-start; }
  #settings-sheet .set-tool { flex-direction: column; align-items: stretch; gap: 8px; }
  #settings-sheet .set-tool__btn { align-self: flex-start; }
}

/* ==========================================================================
   外观偏好的实际效果
   挂在 <html> 的 data-font-scale / data-density / data-bubble-style 上，
   由 app.js 的 applyAppearancePrefs() 写入。
   ========================================================================== */

/* ---- 字号缩放 ----
   直接在每个元素上算最终字号，不用 em 继承，避免父子叠加放大两次。 */
.message-body { font-size: calc(15px * var(--chat-font-scale, 1)); }
.message-head { font-size: calc(12px * var(--chat-font-scale, 1)); }
.composer textarea { font-size: calc(14px * var(--chat-font-scale, 1)); }
.empty-state h3 { font-size: calc(22px * var(--chat-font-scale, 1)); }

/* ---- 消息密度 ---- */
html[data-density="comfortable"] .message-list { gap: 20px; }
html[data-density="comfortable"] .message { padding: 20px 22px; }

html[data-density="compact"] .message-list { gap: 8px; }
html[data-density="compact"] .message { padding: 10px 14px; border-radius: 18px; }
html[data-density="compact"] .message-head { margin-bottom: 4px; }
html[data-density="compact"] .message-body { line-height: 1.62; }

/* ---- 气泡样式 ---- */
html[data-bubble-style="outline"] .message {
  background: transparent;
  border-color: rgba(31, 34, 38, .22);
  box-shadow: none;
}
html[data-bubble-style="outline"] .message.user {
  background: transparent;
  border-color: rgba(116, 143, 184, .55);
}

html[data-bubble-style="solid"] .message {
  background: #ffffff;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(31, 34, 38, .10);
}
html[data-bubble-style="solid"] .message.user {
  background: #1f2226;
  color: #fff;
}
html[data-bubble-style="solid"] .message.user .message-body,
html[data-bubble-style="solid"] .message.user .message-head { color: #fff; }

/* ---- 时间戳 / 日期分隔 开关 ---- */
.message-list.hide-time .message-head > span:last-child { display: none; }
/* 时间戳藏在右侧那个裸 span 里，打开时用 message-head 的两端对齐 */
.message-list.hide-time .message-head { justify-content: flex-start; }

/* 日期分隔条 */
.message-day {
  align-self: center;
  margin: 2px 0;
  padding: 3px 12px;
  border-radius: var(--s-r-pill, 999px);
  background: rgba(31, 34, 38, .06);
  color: #8a8f98;
  font: 500 12px var(--s-sans, sans-serif);
  letter-spacing: .02em;
  user-select: none;
}

/* ---- 角色消息头像（仅当「显示角色头像」开启且角色有头像时插入）----
   加 .message--with-avatar 才改布局，关掉头像时保持原有外观不变。 */
.message--with-avatar {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  column-gap: 10px;
  align-items: start;
}
.message-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  background: rgba(31, 34, 38, .06);
  align-self: end;
}
/* 让正文落在第二列；头像与正文同行对齐 */
.message--with-avatar .message-body { grid-column: 2; }
.message--with-avatar .message-body img { max-width: 100%; }

/* ==========================================================================
   管理员面板 · 角色卡删除留痕
   ========================================================================== */

.admin-card-deletes-list {
  display: grid;
  gap: 10px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 2px;
}

.admin-card-delete-item {
  padding: 12px 14px;
  border: 1px solid var(--s-line-2, #eee9de);
  border-radius: var(--s-r-md, 12px);
  background: var(--s-card, #fffdf8);
  box-shadow: var(--s-sh-1, 0 1px 2px rgba(31, 34, 38, .06));
}

.admin-card-delete-item .cd-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.admin-card-delete-item .cd-name {
  font: 600 14.5px var(--s-serif, serif);
  color: var(--s-ink, #1f2226);
  overflow-wrap: anywhere;
}

.admin-card-delete-item .cd-time {
  flex: none;
  font: 12px var(--s-sans, sans-serif);
  color: var(--s-ink-3, #8a8f98);
  font-variant-numeric: tabular-nums;
}

.admin-card-delete-item .cd-summary {
  margin: 6px 0 0;
  font: 13px/1.6 var(--s-sans, sans-serif);
  color: var(--s-ink-2, #4a4f58);
}

.admin-card-delete-item .cd-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 8px;
  font: 12px var(--s-sans, sans-serif);
  color: var(--s-ink-3, #8a8f98);
}

.admin-card-delete-item .cd-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.admin-card-delete-item .cd-tags span {
  padding: 2px 8px;
  border-radius: var(--s-r-pill, 999px);
  background: var(--s-line-2, #eee9de);
  font: 12px var(--s-sans, sans-serif);
  color: var(--s-ink-2, #4a4f58);
}

.admin-card-delete-item .cd-details {
  margin-top: 10px;
  border-top: 1px solid var(--s-line-2, #eee9de);
  padding-top: 8px;
}
.admin-card-delete-item .cd-details > summary {
  cursor: pointer;
  font: 500 12.5px var(--s-sans, sans-serif);
  color: var(--s-accent-700, #4f6a93);
  list-style: none;
}
.admin-card-delete-item .cd-details > summary::-webkit-details-marker { display: none; }
.admin-card-delete-item .cd-details > summary::before {
  content: '▸ ';
  display: inline-block;
}
.admin-card-delete-item .cd-details[open] > summary::before { content: '▾ '; }

.admin-card-delete-item .cd-fields {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}
.admin-card-delete-item .cd-field > span {
  display: block;
  font: 500 12px var(--s-sans, sans-serif);
  color: var(--s-ink-3, #8a8f98);
}
.admin-card-delete-item .cd-field > p {
  margin: 2px 0 0;
  max-height: 140px;
  overflow-y: auto;
  font: 13px/1.65 var(--s-sans, sans-serif);
  color: var(--s-ink, #1f2226);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.admin-card-delete-item .cd-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}