/* 邮箱管理台 · 唯一样式表（主应用 + 登录/二次验证页共用）
 * 设计目标：三段式工作台（账号/邮件/正文）一屏并排、验证码醒目、深色自适应。 */

:root {
  color-scheme: light;
  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-2: #f6f8fb;
  --surface-3: #e9eef5;
  --border: #d5dce7;
  --border-strong: #b8c3d2;
  --text: #172033;
  /* 文字/状态色全部满足 WCAG AA（≥4.5:1，程序化验证过），别随手调亮。 */
  --muted: #58677d;
  --muted-2: #718097;
  --primary: #2559d6;
  --primary-hover: #1e49b4;
  --primary-soft: #e8efff;
  --primary-ink: #ffffff;
  --danger: #be123c;
  --danger-soft: #fde7ec;
  --good: #166534;
  --good-soft: #e4f6ea;
  --warn: #92560a;
  --warn-soft: #fbefd8;
  --code: #0f766e;
  --code-soft: #d8f3ef;
  --toast-bg: #111826;
  --toast-text: #ffffff;
  --toast-error-bg: #be123c;
  --toast-border: transparent;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .07), 0 4px 14px rgba(15, 23, 42, .045);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, .14);
  --shadow-lg: 0 18px 50px rgba(15, 23, 42, .22);
  --radius: 10px;
  --radius-sm: 8px;
  --tap: 36px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0b1018;
    --surface: #151c28;
    --surface-2: #1b2433;
    --surface-3: #263246;
    --border: #344055;
    --border-strong: #526079;
    --text: #f0f4fa;
    --muted: #b1bdd0;
    --muted-2: #8d9ab0;
    --primary: #6698ff;
    --primary-hover: #6ba0ff;
    --primary-soft: #21365c;
    --primary-ink: #ffffff;
    --danger: #fb7185;
    --danger-soft: #3a1b25;
    --good: #4ade80;
    --good-soft: #16301f;
    --warn: #fbbf24;
    --warn-soft: #34260f;
    --code: #4fd6c4;
    --code-soft: #13312d;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .5), 0 6px 18px rgba(0, 0, 0, .18);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, .5);
    --shadow-lg: 0 20px 55px rgba(0, 0, 0, .6);
  }
}

* { box-sizing: border-box; }

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

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; }
input, select, textarea { font-family: inherit; }

.hidden { display: none !important; }
.grow { flex: 1 1 auto; }
.muted { color: var(--muted); }
.strong { font-weight: 600; color: var(--text); }
.wrap-anywhere { overflow-wrap: anywhere; word-break: break-all; }

/* ---------------- 按钮 ---------------- */
.btn,
.primary, .secondary, .ghost, .danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: var(--tap);
  padding: 0 16px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, border-color .15s, transform .05s, box-shadow .15s, color .15s;
}
.btn:hover, .primary:hover, .secondary:hover, .ghost:hover, .danger:hover { border-color: var(--muted-2); background: var(--surface-2); }
.btn:active, .primary:active, .secondary:active, .ghost:active, .danger:active { transform: translateY(1px); }
.btn:focus-visible, .primary:focus-visible, .secondary:focus-visible, .ghost:focus-visible, .danger:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn:disabled, .primary:disabled, .secondary:disabled, .ghost:disabled, .danger:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.primary, .btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.primary:hover, .btn.primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.danger, .btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border-strong)); }
.danger:hover, .btn.danger:hover { background: var(--danger-soft); border-color: var(--danger); }
.ghost, .btn.ghost { background: var(--surface); border-color: var(--border); color: var(--muted); }
.ghost:hover, .btn.ghost:hover { background: var(--surface-3); border-color: var(--border-strong); color: var(--text); }
.secondary { background: var(--surface-2); }

.small, .btn.small { min-height: 30px; padding: 0 10px; font-size: 12.5px; }
.wide { width: 100%; }

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 52px;
  padding: 0 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(15, 23, 42, .03);
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand-icon {
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
}
.brand h1 { margin: 0; font-size: 15px; font-weight: 720; letter-spacing: .1px; }
.main-nav { display: flex; gap: 2px; margin-left: 4px; }
.main-nav button {
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}
.main-nav button:hover { background: var(--surface-3); color: var(--text); }
.main-nav button[aria-current="page"] { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 16%, var(--border)); color: var(--primary); }
.main-nav button:focus-visible,
.mobile-nav button:focus-visible,
.chip-group button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.topbar-right { margin-left: auto; }
.topbar-right form { margin: 0; }
.topbar-right .ghost { background: transparent; border-color: transparent; }

/* ---------------- Toast ---------------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 100;
  max-width: min(90vw, 460px);
  padding: 11px 18px;
  border-radius: 10px;
  background: #111826;
  color: #fff;
  font-size: 13.5px;
  box-shadow: var(--shadow-md);
  animation: toast-in .18s ease;
}
.toast.error { background: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------------- 视图容器 ---------------- */
.view { display: block; }
.page { max-width: 860px; margin: 0 auto; padding: 20px 18px 60px; display: flex; flex-direction: column; gap: 16px; }

/* 邮箱视图锁定为一屏：三栏各自内部滚动，页面本身不滚；
   安全/系统视图仍是普通滚动页面（只在 view-mail 下锁高）。 */
body.app-page.view-mail { display: flex; flex-direction: column; overflow: hidden; }
body.app-page.view-mail .topbar { flex: 0 0 auto; }
body.app-page.view-mail #view-mail { flex: 1 1 auto; min-height: 0; }

/* ---------------- 三段式工作台 ---------------- */
.workbench {
  height: 100%;
  display: grid;
  /* 比例列可在浏览器放大时一起收缩，正文不会再被固定宽度推出屏幕。 */
  grid-template-columns: minmax(0, .82fr) minmax(0, .98fr) minmax(0, 1.5fr);
  gap: 0;
  padding: 0;
  background: var(--surface);
}
.pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  border: 0;
  border-right: 1px solid var(--border);
  border-radius: 0;
  background: var(--surface);
  box-shadow: none;
}
.reader-pane { border-right: 0; }
.pane-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 6px 8px;
  min-height: 50px;
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
/* 标题可能是很长的邮箱地址：永远截断省略，绝不挤到右侧按钮上。 */
.pane-head-text { flex: 1 1 auto; min-width: 110px; display: flex; flex-direction: column; gap: 1px; overflow: hidden; }
.pane-head h2 { margin: 0; font-size: 14px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pane-head-meta { font-size: 11.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pane-head-actions { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; margin-left: auto; }
.account-pane .pane-head-text { flex: 0 1 auto; min-width: 54px; flex-direction: row; align-items: baseline; gap: 6px; }
.account-pane .pane-head-actions { gap: 4px; }
.account-pane .pane-head-actions .btn { padding-inline: 8px; }
#accountSyncBtn[aria-busy="true"] .sync-icon { animation: spin 1s linear infinite; }

/* 窄屏的分段切换条（宽屏由 JS 加 hidden） */
.mobile-nav { display: flex; gap: 6px; padding: 10px 14px 0; }
.mobile-nav button {
  flex: 1;
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.mobile-nav button[aria-current="true"] {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 8%, transparent);
}

/* ---------------- 搜索与输入 ---------------- */
.search-field {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 180px;
  height: var(--tap);
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted);
}
.search-field:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.search-field input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  outline: none;
  min-width: 0;
}
select, input[type="text"], input[type="password"], input[type="search"], textarea {
  height: var(--tap);
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  outline: none;
}
/* 搜索框的外壳已经负责边框和焦点态，内部 input 不能再画第二层框。 */
.search-field input[type="search"] {
  height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
input::placeholder, textarea::placeholder { color: var(--muted-2); opacity: 1; }
textarea { height: auto; padding: 10px 12px; resize: vertical; line-height: 1.55; width: 100%; }
select:focus, input:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }

/* ---------------- 面板 ---------------- */
.panel {
  padding: 14px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.panel-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.panel-note { margin-top: 10px; font-size: 13px; color: var(--muted); }
.inline-label { font-size: 13px; color: var(--muted); }
.hint { font-size: 12.5px; color: var(--muted); line-height: 1.5; margin: 6px 0 0; }
.hint.strong { color: var(--text); font-weight: 600; }

/* 账号栏里的内嵌面板（添加账号 / 批量管理） */
.sub-panel {
  flex: 0 0 auto;
  margin: 10px 12px 0;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--surface) 70%, transparent);
}
.sub-panel select { min-width: 0; }
.bulk-bar {
  border-color: color-mix(in srgb, var(--primary) 25%, var(--border));
  background: color-mix(in srgb, var(--primary-soft) 45%, var(--surface));
}
.bulk-bar select { flex: 1 1 100px; min-width: 0; }
.bulk-count { font-weight: 600; font-size: 13px; }

/* 账号栏：搜索 + 分组筛选 */
.account-tools {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(120px, 1fr);
  gap: 6px;
  padding: 7px 8px;
  border-bottom: 1px solid var(--border);
}
.account-tools .search-field { min-width: 0; width: 100%; }
.account-tools select { width: 100%; min-width: 0; padding-inline: 10px 30px; font-size: 12.5px; text-overflow: ellipsis; }
.account-pane .error-box { flex: 0 0 auto; }

.group-manage { margin-top: 10px; }
.group-manage summary { cursor: pointer; font-size: 13px; color: var(--muted); padding: 4px 0; }
.group-manage-body { padding-top: 8px; }
.group-list { list-style: none; margin: 10px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.group-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.group-list .group-name { font-weight: 500; }
.group-list .count { margin-left: auto; font-size: 12.5px; color: var(--muted); }

.error-box {
  margin: 10px 12px 0;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border));
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 13px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* ---------------- 账号列表（第一段） ---------------- */
.account-list { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 4px; scrollbar-gutter: stable; }
.account-row {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 47px;
  padding: 6px 7px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: var(--surface);
  transition: background .12s, border-color .12s, box-shadow .12s;
}
.account-row + .account-row { margin-top: 1px; }
.account-row:hover { background: var(--surface-2); border-color: var(--border-strong); }
.account-row.active { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); box-shadow: inset 3px 0 0 var(--primary); }
.account-row:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }

input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--primary); cursor: pointer; }
.account-check { display: none; flex: 0 0 auto; }
body.manage-mode .account-check { display: inline-block; }

.account-dot { flex: 0 0 auto; width: 9px; height: 9px; border-radius: 50%; background: var(--muted-2); }
.account-dot.healthy { background: var(--good); }
.account-dot.idle { background: var(--muted-2); }
.account-dot.syncing { background: var(--primary); animation: pulse 1.1s ease-in-out infinite; }
.account-dot.failed { background: var(--danger); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.account-main { flex: 1 1 auto; min-width: 0; }
.account-line { display: flex; align-items: center; gap: 4px; }
.account-email { flex: 1 1 auto; min-width: 0; font-size: 12.5px; font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-sub { display: flex; align-items: center; gap: 5px; margin-top: 1px; font-size: 11px; color: var(--muted); white-space: nowrap; overflow: hidden; }
.account-sub .group-tag { flex: 0 0 auto; max-width: 42%; overflow: hidden; text-overflow: ellipsis; }
.account-state { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.account-state.bad { color: var(--danger); }
.account-when { flex: 0 0 auto; color: var(--muted-2); }

.copy-btn {
  display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 auto;
  width: 26px; height: 26px; padding: 0;
  border: none; border-radius: 6px;
  background: transparent; color: var(--muted-2);
  cursor: pointer; opacity: 0; transition: opacity .12s, background .12s;
}
.account-row:hover .copy-btn, .account-row:focus-within .copy-btn, .copy-btn:focus-visible { opacity: 1; }
.copy-btn:hover { background: var(--surface-3); color: var(--primary); }

.row-sync {
  flex: 0 0 auto;
  width: 28px; height: 28px; padding: 0;
  border: none; border-radius: 7px;
  background: transparent; color: var(--muted);
  cursor: pointer; opacity: 0; transition: opacity .12s, background .12s;
}
.account-row:hover .row-sync, .account-row:focus-within .row-sync { opacity: 1; }
.row-sync:hover { background: var(--primary-soft); color: var(--primary); }
.row-sync:disabled { opacity: .35; cursor: default; }
.row-sync.busy { opacity: .9; }
.row-sync.busy svg { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (hover: none) { .copy-btn, .row-sync { opacity: 1; } }

.group-tag { display: inline-block; padding: 0 6px; border-radius: 999px; background: var(--surface-3); color: var(--muted); font-size: 10.5px; }

/* 验证码 chip —— 管理台核心（mini 版嵌在账号行右侧） */
.code-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px 5px 12px;
  border: 1px solid var(--code-soft);
  border-radius: 8px;
  background: var(--code-soft);
  color: var(--code);
  cursor: pointer;
  transition: transform .05s, box-shadow .15s;
}
.code-chip:hover { box-shadow: 0 0 0 3px color-mix(in srgb, var(--code) 15%, transparent); }
.code-chip:active { transform: translateY(1px); }
.code-chip .digits { font-family: var(--mono); font-size: 16px; font-weight: 700; letter-spacing: 2px; }
.code-chip.copied { background: var(--good-soft); border-color: var(--good-soft); color: var(--good); }
.code-chip.mini { flex: 0 0 auto; padding: 3px 8px; border-radius: 7px; }
.code-chip.mini .digits { font-size: 13.5px; letter-spacing: 1.2px; }

.empty-state { padding: 40px 18px; text-align: center; color: var(--muted); font-size: 13.5px; line-height: 1.7; }
.empty-state .big { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.empty-state p { max-width: 320px; margin: 0 auto; }
.empty-state .empty-action { margin-top: 14px; }

/* ---------------- 邮件列表（第二段）与正文（第三段） ---------------- */
.message-list { flex: 1 1 auto; min-height: 0; overflow-y: auto; display: flex; flex-direction: column; }
.message-row {
  display: block; width: 100%; text-align: left;
  padding: 8px 11px 9px;
  border: none; border-bottom: 1px solid var(--border);
  background: var(--surface); color: var(--text);
  cursor: pointer;
  box-shadow: inset 3px 0 0 transparent;
  transition: background .12s, box-shadow .12s;
}
.message-row:hover { background: var(--surface-2); }
.message-row.active { background: var(--primary-soft); box-shadow: inset 3px 0 0 var(--primary); }
.message-row:focus-visible { position: relative; z-index: 1; outline: 2px solid var(--primary); outline-offset: -2px; }
.message-top { display: flex; justify-content: space-between; gap: 8px; }
.message-from { font-weight: 700; font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.message-time { font-size: 11px; color: var(--muted); flex: none; }
.message-summary-line { display: flex; min-width: 0; align-items: baseline; margin-top: 2px; }
.message-subject { flex: 0 1 auto; max-width: 58%; font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.message-preview { flex: 1 1 auto; min-width: 0; font-size: 11.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.message-preview:not(:empty)::before { content: " · "; color: var(--muted-2); }

.reader-body { flex: 1; display: flex; flex-direction: column; min-height: 0; padding: 16px; overflow-y: auto; background: var(--surface); }
.reader-subject { font-size: 18px; font-weight: 720; line-height: 1.4; margin-bottom: 10px; }
.reader-meta { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 12.5px; color: var(--muted); padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px solid var(--border); }
.reader-text { font-family: var(--mono); font-size: 13px; white-space: pre-wrap; overflow-wrap: anywhere; margin: 0; }
.reader-frame { flex: 1; width: 100%; min-height: 320px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; }

.code-chip-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 12px; margin-bottom: 12px;
  border: 1px solid var(--code-soft); border-radius: var(--radius-sm);
  background: var(--code-soft);
}
.code-chip-label { font-size: 12.5px; color: var(--code); font-weight: 600; }
.code-chip-value { font-family: var(--mono); font-size: 22px; font-weight: 700; letter-spacing: 3px; color: var(--code); }
.code-chip-row .primary { margin-left: auto; }

.sync-error {
  margin: 12px; padding: 14px;
  border: 1px solid color-mix(in srgb, var(--danger) 30%, var(--border));
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
}
.sync-error h4 { margin: 0 0 6px; color: var(--danger); font-size: 14px; }
.sync-error p { margin: 0 0 8px; font-size: 13px; }
.sync-error details { font-size: 12.5px; }
.sync-error summary { cursor: pointer; color: var(--muted); }
.sync-error pre { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 12px; margin: 8px 0; color: var(--muted); }

/* ---------------- 卡片（安全/系统） ---------------- */
.card {
  padding: 20px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.card h3 { margin: 0 0 4px; font-size: 15px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 14px 0; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--muted); }
.form-grid input { width: 100%; }
.row { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.row.wrap { flex-wrap: wrap; }
.row input[type="text"], .row input[type="password"] { flex: 1 1 160px; }
.spacer { flex: 1; }

.chip { padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--surface-3); color: var(--muted); }
.chip.good { background: var(--good-soft); color: var(--good); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.bad { background: var(--danger-soft); color: var(--danger); }
.chip-group { display: inline-flex; gap: 4px; }
.chip-group button { min-height: 30px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface); color: var(--muted); font-size: 12.5px; font-weight: 600; cursor: pointer; }
.chip-group button:hover { background: var(--surface-3); color: var(--text); }
.chip-group button[aria-current="true"],
.chip-group button[aria-pressed="true"] { background: var(--primary-soft); color: var(--primary); border-color: color-mix(in srgb, var(--primary) 30%, var(--border)); }

.code-line { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.code-line code { flex: 1; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--surface-3); font-family: var(--mono); font-size: 12.5px; overflow-wrap: anywhere; }
.code-block { padding: 12px; border-radius: var(--radius-sm); background: var(--surface-3); font-family: var(--mono); font-size: 13px; line-height: 1.9; white-space: pre-wrap; margin: 8px 0; }

.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.metric { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); }
.metric-label { font-size: 12px; color: var(--muted); }
.metric-value { font-size: 18px; font-weight: 700; margin-top: 4px; }
.metric.good .metric-value { color: var(--good); }
.metric.bad .metric-value { color: var(--danger); }
.metric.warn .metric-value { color: var(--warn); }

.passkey-list { list-style: none; margin: 12px 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.passkey-list li { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); }
.passkey-info { flex: 1; min-width: 0; }
.passkey-name { font-weight: 600; }
.passkey-meta { font-size: 12px; color: var(--muted); margin-top: 2px; }

#logSearch { width: 100%; margin-top: 10px; }
.log-list { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-direction: column; }
.log-list li { display: grid; grid-template-columns: 84px 128px 1fr auto; gap: 10px; align-items: baseline; padding: 9px 4px; border-bottom: 1px solid var(--border); font-size: 13px; }
.log-time { color: var(--muted); font-size: 12px; }
.log-label { font-weight: 600; }
.log-label.good { color: var(--good); }
.log-label.bad { color: var(--danger); }
.log-detail { color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log-ip { color: var(--muted); font-size: 12px; font-family: var(--mono); }

/* ---------------- 弹窗 ---------------- */
.modal-backdrop { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 18px; overflow-y: auto; background: rgba(10, 16, 26, .62); }
.modal-card { width: min(420px, 100%); padding: 20px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-lg); }
.modal-card h3 { margin: 0 0 6px; }
.modal-card input { width: 100%; margin-bottom: 10px; }
.field-label { display: block; font-size: 12.5px; color: var(--muted); margin: 8px 0 5px; }
.modal-actions { justify-content: flex-end; margin-top: 8px; }
.auth-error { padding: 9px 12px; border-radius: var(--radius-sm); background: var(--danger-soft); color: var(--danger); font-size: 13px; }

body.modal-open { overflow: hidden; }
.quick-add-panel {
  flex: 0 0 auto;
  padding: 9px 10px 10px;
  border-bottom: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border));
  background: color-mix(in srgb, var(--primary-soft) 36%, var(--surface));
  box-shadow: inset 3px 0 0 var(--primary);
}
.quick-add-head { display: flex; align-items: center; gap: 10px; }
.quick-add-head > div { flex: 1 1 auto; min-width: 0; }
.quick-add-head h3 { margin: 0; font-size: 13px; line-height: 1.3; }
.quick-add-head p { margin: 1px 0 0; color: var(--muted); font-size: 11.5px; }
.icon-button {
  display: inline-grid; place-items: center;
  flex: 0 0 auto;
  width: 30px; height: 30px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.icon-button:hover { border-color: var(--border-strong); background: var(--surface-3); color: var(--text); }
.icon-button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.field-heading { display: flex; align-items: baseline; gap: 10px; margin-top: 7px; }
.field-heading .field-label { margin: 0; color: var(--text); font-size: 13px; font-weight: 650; }
.field-counter { margin-left: auto; color: var(--muted); font-size: 12px; }
#bundleInput {
  min-height: 74px;
  max-height: 150px;
  margin-top: 4px;
  padding: 8px 10px;
  border-color: var(--border-strong);
  background: var(--surface);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
}
.format-help {
  margin-top: 6px;
  padding: 0 2px;
  color: var(--muted);
  font-size: 11.5px;
}
.format-help summary { cursor: pointer; color: var(--muted); font-size: 12px; }
.format-help[open] { display: grid; gap: 5px; }
.format-help code {
  display: block;
  margin-top: 2px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  overflow-wrap: anywhere;
}
.quick-add-actions { display: flex; align-items: center; gap: 6px; margin-top: 6px; }
.quick-add-actions select { flex: 1 1 auto; width: auto; min-width: 100px; }
.quick-add-panel .error-box { max-height: 110px; margin: 7px 0 0; overflow: auto; }
.quick-add-panel .panel-note { margin-top: 7px; padding: 7px 9px; border-radius: var(--radius-sm); background: var(--good-soft); color: var(--good); }
.privacy-note { margin: 5px 2px 0; color: var(--muted); font-size: 11.5px; line-height: 1.45; }

/* ---------------- 登录 / 二次验证页 ---------------- */
.auth-page { display: grid; place-items: center; min-height: 100%; padding: 24px; }
.auth-card { width: min(400px, 100%); padding: 34px 30px; border: 1px solid var(--border-strong); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow-md); text-align: center; }
.auth-brand { display: grid; place-items: center; width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 14px; background: var(--primary); color: #fff; }
.auth-card h1 { margin: 0 0 4px; font-size: 20px; }
.auth-subtitle { margin: 0 0 20px; color: var(--muted); font-size: 13.5px; }
.auth-form { display: flex; flex-direction: column; gap: 6px; text-align: left; }
.auth-form .field-label { margin-top: 4px; }
.auth-form input { width: 100%; }
.auth-form button { margin-top: 14px; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 18px 0; color: var(--muted-2); font-size: 12px; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-back { display: inline-block; margin-top: 16px; color: var(--primary); text-decoration: none; font-size: 13px; }
.auth-back:hover { text-decoration: underline; }
.auth-card .auth-error { margin-bottom: 14px; text-align: left; }

/* ---------------- 邮件查看增强（v2） ---------------- */
.btn.toggle[aria-pressed="true"] { background: var(--primary-soft); color: var(--primary); border-color: color-mix(in srgb, var(--primary) 30%, var(--border)); }
/* 文件夹与图片开关独立成一行工具栏，标题行只留同步按钮，窄栏也不会挤爆。 */
.mail-toolbar { flex: 0 0 auto; display: flex; align-items: center; gap: 6px; min-height: 39px; padding: 4px 8px; border-bottom: 1px solid var(--border); background: var(--surface); }
.mail-toolbar .chip-group button { min-height: 27px; padding: 0 10px; }
/* 动作区兜底：任何窄度下换行收纳，绝不把布局往外顶。 */
.pane-head-actions { flex-wrap: nowrap; justify-content: flex-end; min-width: 0; }
/* 空状态在列表/正文里垂直水平都居中，不再吊在顶部或被裁切。 */
.message-list .empty-state, .reader-body .empty-state { margin: auto; }
.attach-badge { display: inline-flex; align-items: center; margin-right: 5px; color: var(--muted); vertical-align: -1px; }
.load-more-wrap { flex: 0 0 auto; display: flex; justify-content: center; padding: 6px 0 2px; }
.reader-code { margin-left: auto; }
.attachment-row { display: flex; flex-wrap: wrap; gap: 6px; padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px solid var(--border); }
.attachment-chip { display: inline-flex; align-items: center; gap: 4px; max-width: 100%; padding: 3px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface-2); color: var(--text); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------------- 响应式 ---------------- */
/* 略窄的桌面：仍按比例收纳，正文不会被固定列宽推出屏幕。 */
@media (max-width: 1380px) {
  .workbench { grid-template-columns: minmax(0, .84fr) minmax(0, 1fr) minmax(0, 1.35fr); }
}

/* 中屏：账号 + 邮件两栏并排，正文整行在下（三段仍然全部可见） */
@media (max-width: 1020px) {
  .workbench {
    grid-template-columns: 300px minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) minmax(0, 45%);
  }
  .workbench .reader-pane { grid-column: 1 / -1; }
}

/* 窄屏：一次显示一段，顶部切换条在 账号/邮件/正文 之间切换 */
@media (max-width: 860px) {
  .workbench {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    padding: 8px 10px 12px;
  }
  .workbench .pane { display: none; grid-column: 1; grid-row: 1; }
  .workbench.pane-accounts .account-pane,
  .workbench.pane-messages .mail-pane,
  .workbench.pane-reader .reader-pane { display: flex; }
  .workbench .pane { border: 1px solid var(--border-strong); border-radius: var(--radius); }
  .topbar { gap: 10px; padding: 0 12px; }
}

/* 浏览器捏合放大不会触发普通 CSS 宽度断点。JS 根据 visualViewport
   添加此类，让高倍放大与真正窄屏一样改为单面板，杜绝右侧正文被裁掉。 */
body.viewport-compact .workbench {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  padding: 8px 10px 12px;
}
body.viewport-compact .workbench .pane {
  display: none;
  grid-column: 1;
  grid-row: 1;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}
body.viewport-compact .workbench.pane-accounts .account-pane,
body.viewport-compact .workbench.pane-messages .mail-pane,
body.viewport-compact .workbench.pane-reader .reader-pane { display: flex; }

@media (max-width: 560px) {
  .brand h1 { display: none; }
  .main-nav button { padding: 0 10px; }
  .pane-head-actions .btn { padding: 0 10px; }
  .log-list li { grid-template-columns: 1fr auto; row-gap: 2px; }
  .log-detail { grid-column: 1 / -1; white-space: normal; }
  #bundleInput { min-height: 82px; }
  .quick-add-actions { flex-wrap: wrap; }
  .quick-add-actions select { flex-basis: 100%; }
  .quick-add-actions .btn { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}