/* CleanTempMail Workspace —— 设计系统 */
:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --radius-sm: 7px;
  --radius: 11px;
  --radius-lg: 16px;
  --sidebar-w: 252px;
  --list-w: 400px;
  --topbar-h: 58px;
  --row-pad: 12px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
:root,
[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f5f7;
  --panel: #ffffff;
  --panel-2: #f9fafb;
  --hover: #f2f4f7;
  --active: #eaedf2;
  --line: #eceef2;
  --line-strong: #dde0e6;
  --text: #18191c;
  --text-2: #3c4049;
  --muted: #6b7180;
  --faint: #676d79;
  --accent: #2563eb;
  --accent-btn: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eef3fe;
  --accent-text: #1d4ed8;
  --accent-ring: rgba(37, 99, 235, .22);
  --sel: #edf2fe;
  --unread: #2563eb;
  --star: #f2a516;
  --ok: #138a52;
  --ok-soft: #e6f6ee;
  --warn: #a8600a;
  --warn-soft: #fff4e2;
  --err: #d13a2f;
  --err-soft: #fdecea;
  --info-soft: #eef4ff;
  --info: #2552a3;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 8px 24px rgba(15, 23, 42, .07), 0 2px 6px rgba(15, 23, 42, .04);
  --shadow-lg: 0 24px 56px rgba(15, 23, 42, .16), 0 6px 16px rgba(15, 23, 42, .06);
  --sk: #eceef2;
  --sk-2: #f6f7f9;
}
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0c0f;
  --panel: #15171b;
  --panel-2: #191b20;
  --hover: #1e2127;
  --active: #252830;
  --line: #23262d;
  --line-strong: #30343c;
  --text: #ebedf0;
  --text-2: #c5c9d0;
  --muted: #8d939e;
  --faint: #7d838e;
  --accent: #6b9bff;
  --accent-btn: #2f63e8;
  --accent-hover: #4677f0;
  --accent-soft: #18233b;
  --accent-text: #8fb1ff;
  --accent-ring: rgba(107, 155, 255, .35);
  --sel: #1a2540;
  --unread: #6b9bff;
  --star: #f5b73b;
  --ok: #3ccf8e;
  --ok-soft: #10291e;
  --warn: #f0b45b;
  --warn-soft: #2d2212;
  --err: #ff6b61;
  --err-soft: #321816;
  --info-soft: #14223a;
  --info: #9cc2ff;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow: 0 6px 20px rgba(0, 0, 0, .45);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, .6), 0 4px 16px rgba(0, 0, 0, .4);
  --sk: #1f2329;
  --sk-2: #262a31;
}
[data-density="compact"] {
  --row-pad: 7px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 14px/1.5 var(--font);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
[hidden] { display: none !important; }
kbd {
  font: 500 11px/1 var(--mono);
  padding: 3px 5px;
  border-radius: 5px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  background: var(--panel);
  color: var(--muted);
}
code { font: 12.5px var(--mono); background: var(--hover); padding: 1px 6px; border-radius: 5px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.center-text { text-align: center; }
::selection { background: var(--accent-ring); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* 图标 */
.i { width: 18px; height: 18px; flex: none; vertical-align: middle; }
.spin { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 34px; padding: 0 14px;
  border: 1px solid var(--line-strong); border-radius: 9px;
  background: var(--panel); color: var(--text);
  font-weight: 500; cursor: pointer; white-space: nowrap; text-decoration: none !important;
  transition: background .15s, border-color .15s, box-shadow .15s, transform .05s;
}
.btn:hover { background: var(--hover); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: default; transform: none; }
.btn .i { width: 16px; height: 16px; }
.btn.primary { background: var(--accent-btn); border-color: var(--accent-btn); color: #fff; box-shadow: 0 1px 2px rgba(29, 78, 216, .22); }
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--hover); }
.btn.danger { color: var(--err); }
.btn.danger-solid { background: var(--err); border-color: var(--err); color: #fff; }
.btn.danger-solid:hover { filter: brightness(.95); }
.btn.sm { height: 28px; padding: 0 10px; font-size: 13px; border-radius: 7px; }
.btn.lg { height: 44px; padding: 0 20px; font-size: 15px; border-radius: 11px; }
.btn.block { width: 100%; }
.icon-btn {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px; border-radius: 9px;
  border: 0; background: transparent; color: var(--muted); cursor: pointer;
  transition: background .12s, color .12s;
  text-decoration: none !important;
}
.icon-btn:hover { background: var(--hover); color: var(--text); }
.icon-btn.sm { width: 28px; height: 28px; border-radius: 7px; }
.icon-btn.sm .i { width: 16px; height: 16px; }
.icon-btn.xs { width: 22px; height: 22px; border-radius: 6px; }
.icon-btn.xs .i { width: 14px; height: 14px; }
.icon-btn.danger-hover:hover { color: var(--err); background: var(--err-soft); }
.link-btn { border: 0; background: none; padding: 0; color: var(--accent-text); cursor: pointer; font-size: inherit; display: inline-flex; align-items: center; gap: 3px; }
.link-btn:hover { text-decoration: underline; }

.input {
  width: 100%; height: 38px; padding: 0 12px;
  border: 1px solid var(--line-strong); border-radius: 9px;
  background: var(--panel); color: var(--text); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.input:disabled { opacity: .65; }
.field-label { display: block; font-weight: 600; font-size: 13px; margin: 14px 0 6px; }
.field-label:first-child { margin-top: 0; }
.hint { margin: 6px 0 0; font-size: 12.5px; color: var(--muted); }

/* 状态 */
.status { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 99px; white-space: nowrap; }
.status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status.ok { color: var(--ok); background: var(--ok-soft); }
.status.warn { color: var(--warn); background: var(--warn-soft); }
.status.err { color: var(--err); background: var(--err-soft); }
.status.off { color: var(--muted); background: var(--hover); }
.notice { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius); margin: 12px 0; line-height: 1.55; }
.notice .i { margin-top: 1px; }
.notice p { margin: 4px 0 8px; }
.notice.warn { background: var(--warn-soft); color: var(--warn); }
.notice.warn span, .notice.warn p, .notice.warn b { color: var(--text-2); }
.notice.warn b { color: var(--text); }
.notice.err { background: var(--err-soft); color: var(--err); }
.notice.info { background: var(--info-soft); color: var(--info); }
.notice.info span { color: var(--text-2); }
.notice.sm { padding: 8px 12px; font-size: 13px; margin: 8px 0; }

/* 头像 */
.avatar {
  --av: #888;
  width: 36px; height: 36px; border-radius: 50%; flex: none;
  display: inline-grid; place-items: center;
  background: color-mix(in srgb, var(--av) 16%, var(--panel));
  color: color-mix(in srgb, var(--av) 62%, #000); font-weight: 600; font-size: 14px; letter-spacing: -.02em;
  user-select: none;
}
[data-theme="dark"] .avatar { background: color-mix(in srgb, var(--av) 26%, var(--panel)); color: color-mix(in srgb, var(--av) 60%, #fff); }
.avatar.sm { width: 30px; height: 30px; font-size: 12.5px; }
.avatar.md { width: 40px; height: 40px; font-size: 15px; }
.avatar.draft { --av: #8e8e93; }

/* 品牌 */
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none !important; }
.brand-logo { width: 30px; height: 30px; border-radius: 8px; box-shadow: 0 1px 3px rgba(16, 24, 40, .12); }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text b { font-size: 15px; letter-spacing: -.01em; font-weight: 700; }
.brand-ws { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-text); margin-top: 2px; }

/* ---------- 布局 ---------- */
.boot, .fatal { height: 100vh; display: grid; place-content: center; justify-items: center; gap: 8px; color: var(--muted); }
.boot img { animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .5; transform: scale(.94); } }
.app { display: grid; grid-template-columns: var(--sidebar-w) 1fr; height: 100vh; height: 100dvh; }
.content { display: grid; grid-template-rows: var(--topbar-h) 1fr; min-width: 0; min-height: 0; }
.mobile-only { display: none !important; }
.sidebar-backdrop { display: none; }

/* 侧栏 */
.sidebar { display: flex; flex-direction: column; padding: 12px 10px 10px; overflow-y: auto; min-height: 0; }
.sidebar > * { flex-shrink: 0; }
.sb-brand { padding: 4px 8px 14px; }
.compose-btn { height: 44px; border-radius: 13px; margin: 0 2px 14px; font-size: 14.5px; justify-content: flex-start; padding: 0 16px; gap: 10px; }
.compose-btn kbd { margin-left: auto; background: rgba(255, 255, 255, .18); border-color: rgba(255, 255, 255, .25); color: rgba(255, 255, 255, .85); }
.sb-nav, .sb-bottom { display: flex; flex-direction: column; gap: 1px; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  height: 34px; padding: 0 10px; border-radius: 9px;
  color: var(--text-2); text-decoration: none !important; font-weight: 500;
  transition: background .12s;
}
.nav-item:hover { background: var(--hover); }
.nav-item.active { background: var(--accent-soft); color: var(--accent-text); font-weight: 600; }
.nav-item .i { width: 18px; height: 18px; color: var(--muted); }
.nav-item.active .i { color: var(--accent-text); }
.nav-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-count { font-size: 12px; font-weight: 600; color: var(--text-2); font-variant-numeric: tabular-nums; }
.nav-count.strong { color: var(--text); }
.nav-item.active .nav-count { color: var(--accent-text); }
.sb-section { margin-top: 18px; flex: 1; }
.sb-title { display: flex; align-items: center; justify-content: space-between; padding: 0 6px 6px 10px; font-size: 11.5px; font-weight: 600; color: var(--faint); text-transform: uppercase; letter-spacing: .06em; }
.nav-domain .nav-item.domain { padding-left: 2px; gap: 4px; }
.nav-caret { width: 22px; height: 22px; border: 0; background: none; color: var(--faint); display: grid; place-items: center; border-radius: 6px; cursor: pointer; transition: transform .15s; }
.nav-caret:hover { background: var(--active); color: var(--text); }
.nav-caret .i { width: 14px; height: 14px; }
.nav-domain.collapsed .nav-caret { transform: rotate(-90deg); }
.nav-domain.collapsed .nav-sub { display: none; }
.nav-domain-link { display: flex; align-items: center; gap: 9px; flex: 1; min-width: 0; color: inherit; text-decoration: none !important; height: 100%; }
.dot { width: 8px; height: 8px; border-radius: 3px; background: var(--av); flex: none; }
.nav-sub { display: flex; flex-direction: column; gap: 1px; margin: 1px 0 4px; }
.nav-item.sub { height: 30px; padding-left: 43px; font-size: 13px; font-weight: 400; }
.nav-item.sub .muted { color: var(--faint); }
.nav-more, .nav-empty { padding: 4px 0 4px 43px; font-size: 12.5px; color: var(--faint); border: 0; background: none; text-align: left; cursor: pointer; }
.nav-more:hover { color: var(--accent-text); }
.nav-empty { cursor: default; }
.sb-empty { display: flex; align-items: center; gap: 8px; padding: 8px 10px; color: var(--muted); font-size: 13px; border: 1px dashed var(--line-strong); border-radius: 9px; margin: 0 2px; }
.sb-empty:hover { color: var(--accent-text); border-color: var(--accent); text-decoration: none; }
.sb-bottom { margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--line); }

/* 顶栏 */
.topbar { display: flex; align-items: center; gap: 12px; padding: 0 16px 0 4px; }
.search { position: relative; flex: 1; max-width: 680px; }
.search .i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--faint); width: 17px; height: 17px; pointer-events: none; }
.search input {
  width: 100%; height: 42px; padding: 0 44px 0 42px;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--panel); outline: none;
  transition: box-shadow .15s, border-color .15s;
}
.search input::placeholder { color: var(--faint); }
.search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.search input::-webkit-search-cancel-button { cursor: pointer; }
.search-kbd { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); pointer-events: none; }
.search input:focus ~ .search-kbd, .search input:not(:placeholder-shown) ~ .search-kbd { display: none; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.user-btn { border: 0; background: none; padding: 3px; border-radius: 50%; cursor: pointer; margin-left: 4px; }
.user-btn:hover { box-shadow: 0 0 0 3px var(--hover); }

/* 工作区：列表 + 阅读 */
.workspace {
  display: grid; grid-template-columns: var(--list-w) 0 1fr;
  margin: 0 12px 12px 0; min-height: 0;
  background: var(--panel); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: 0 0 0 1px rgba(15, 23, 42, .04), 0 12px 32px -14px rgba(15, 23, 42, .12);
}
.workspace.paged { grid-template-columns: 1fr; }
.workspace.paged .resizer { display: none; }
.list-pane { display: flex; flex-direction: column; min-height: 0; border-right: 1px solid var(--line); }
.reader-pane { display: flex; flex-direction: column; min-height: 0; min-width: 0; background: var(--panel); }
.page-pane { overflow-y: auto; min-height: 0; }

/* ---------- 列表 ---------- */
.list-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px 8px 16px; min-height: 54px; }
.list-title { margin: 0; font-size: 17px; font-weight: 700; letter-spacing: -.01em; display: flex; align-items: baseline; gap: 8px; min-width: 0; flex: 1; }
.list-title > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.title-count { font-size: 12.5px; font-weight: 500; color: var(--muted); white-space: nowrap; }
.list-tools { display: flex; gap: 2px; align-items: center; }
.sel-count { font-weight: 600; font-size: 13.5px; white-space: nowrap; }
.bulk { display: flex; gap: 0; margin-left: auto; }
.filters { display: flex; gap: 6px; padding: 0 16px 10px; flex-wrap: wrap; align-items: center; border-bottom: 1px solid var(--line); }
.filter { height: 26px; padding: 0 11px; border-radius: 99px; border: 1px solid var(--line); background: transparent; color: var(--muted); font-size: 12.5px; font-weight: 500; cursor: pointer; transition: all .12s; }
.filter:hover { border-color: var(--line-strong); color: var(--text); }
.filter.on { background: var(--accent-soft); border-color: transparent; color: var(--accent-text); font-weight: 600; }
.search-chip { display: inline-flex; align-items: center; gap: 4px; height: 26px; padding: 0 4px 0 9px; border-radius: 99px; background: var(--accent-soft); color: var(--accent-text); font-size: 12.5px; font-weight: 500; }
.search-chip .i { width: 13px; height: 13px; }
.search-chip button { border: 0; background: none; color: inherit; display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; cursor: pointer; padding: 0; }
.search-chip button:hover { background: rgba(0, 0, 0, .08); }
.list-notice { margin: 8px 12px 0; }
.list-body { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding-bottom: 12px; }
.group-head { position: sticky; top: 0; z-index: 1; padding: 10px 16px 5px; font-size: 11.5px; font-weight: 600; color: var(--muted); letter-spacing: .04em; background: color-mix(in srgb, var(--panel) 92%, transparent); backdrop-filter: blur(6px); }

.row {
  position: relative; display: flex; gap: 12px;
  padding: var(--row-pad) 14px var(--row-pad) 16px; margin: 0 6px 1px;
  border-radius: 10px; cursor: pointer; outline: none;
  transition: background .1s;
}
.row:hover { background: var(--hover); }
.row.active { background: var(--sel); }
.row.selected { background: var(--accent-soft); }
.row.unread::before { content: ""; position: absolute; left: 5px; top: calc(var(--row-pad) + 15px); width: 6px; height: 6px; border-radius: 50%; background: var(--unread); }
.row-lead { position: relative; width: 36px; height: 36px; flex: none; }
.row-lead .check { position: absolute; inset: 0; display: none; place-items: center; }
.row:hover .row-lead .avatar, .row.selected .row-lead .avatar, .list-head.selecting ~ .list-body .row-lead .avatar { visibility: hidden; }
.row:hover .row-lead .check, .row.selected .row-lead .check, .list-head.selecting ~ .list-body .row-lead .check { display: grid; }
.row.draft:hover .row-lead .avatar { visibility: visible; }
.row-main { flex: 1; min-width: 0; display: grid; gap: 1px; }
.row-top { display: flex; align-items: center; gap: 6px; min-width: 0; }
.row-from { font-size: 14px; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.row.unread .row-from { color: var(--text); font-weight: 600; }
.row-count { font-size: 11.5px; color: var(--muted); font-weight: 600; background: var(--hover); padding: 0 6px; border-radius: 99px; line-height: 18px; }
.row.active .row-count, .row:hover .row-count { background: var(--active); }
.row-icons { display: inline-flex; align-items: center; gap: 4px; color: var(--faint); margin-left: auto; }
.row-icons .i { width: 14px; height: 14px; }
.row-top time { font-size: 12px; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.row.unread .row-top time { color: var(--accent-text); font-weight: 600; }
.row-subject { font-size: 13.5px; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row.unread .row-subject { color: var(--text); font-weight: 600; }
.row-snippet { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
[data-density="compact"] .row-snippet { display: none; }
[data-density="compact"] .row-lead, [data-density="compact"] .row-lead .avatar { width: 30px; height: 30px; font-size: 12.5px; }
.row-bottom { display: flex; align-items: center; gap: 10px; min-width: 0; }
.row-bottom .row-snippet { flex: 1 1 0; min-width: 0; }
/* 地址标签优先完整显示，摘要被截断；地址特别长时才省略 */
.row-tags { display: flex; gap: 4px; flex: 0 0 auto; min-width: 0; max-width: 64%; }
.row-tags .tag { flex: 0 1 auto; min-width: 0; }
.tag.tag-box { color: var(--text-2); }
.box-dot { width: 7px; height: 7px; border-radius: 50%; flex: none; background: var(--dc, var(--faint)); }
[data-density="compact"] .row-bottom { margin-top: 1px; }
.tag { display: inline-flex; align-items: center; gap: 4px; max-width: 100%; height: 20px; padding: 0 7px; border-radius: 6px; font-size: 11.5px; font-weight: 500; color: var(--muted); background: var(--hover); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-decoration: none !important; }
.tag .i { width: 12px; height: 12px; flex: none; }
.tag.tag-in { color: var(--accent-text); background: var(--accent-soft); }
.row:hover .tag, .row.active .tag { background: var(--active); }
.star-btn { border: 0; background: none; color: var(--faint); cursor: pointer; display: grid; place-items: center; }
.row-star { display: inline-flex; color: var(--star); }
.row-hover .starred { color: var(--star); }
.star-btn:hover { color: var(--star); background: var(--hover); }
.star-btn.on { color: var(--star); }
.star-btn .i { width: 16px; height: 16px; }
.row-hover { position: absolute; right: 10px; top: calc(var(--row-pad) - 2px); display: none; gap: 0; padding: 2px; border-radius: 9px; background: var(--panel); box-shadow: var(--shadow); border: 1px solid var(--line); }
.row:hover .row-hover { display: flex; }
.row:hover .row-top time, .row:hover .row-icons { visibility: hidden; }
.draft-tag { color: var(--err); font-weight: 600; margin-right: 6px; }
.list-more, .list-end { padding: 14px; text-align: center; color: var(--faint); font-size: 12.5px; display: flex; justify-content: center; gap: 6px; align-items: center; }

/* 复选框 */
.check { position: relative; display: inline-grid; place-items: center; width: 20px; height: 20px; cursor: pointer; }
.check input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.check span { width: 18px; height: 18px; border-radius: 5px; border: 1.5px solid var(--line-strong); background: var(--panel); transition: all .12s; display: grid; place-items: center; }
.check input:checked + span { background: var(--accent); border-color: var(--accent); }
.check input:checked + span::after { content: ""; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg) translate(-1px, -1px); }
.check span.partial { background: var(--accent); border-color: var(--accent); }
.check span.partial::after { content: ""; width: 9px; height: 2px; background: #fff; border-radius: 1px; }
.check input:disabled + span { opacity: .4; }
.head-check { margin-right: 2px; }

/* 骨架 */
.skeleton { pointer-events: none; }
.sk { display: block; height: 10px; border-radius: 5px; background: linear-gradient(90deg, var(--sk) 25%, var(--sk-2) 50%, var(--sk) 75%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; margin: 5px 0; }
.avatar.sk { width: 36px; height: 36px; margin: 0; }
.sk.w40 { width: 40%; height: 12px; }
.sk.w70 { width: 70%; }
.sk.w90 { width: 90%; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

/* 空状态 */
.empty { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 64px 24px; color: var(--muted); }
.empty h3 { margin: 14px 0 4px; color: var(--text); font-size: 16px; }
.empty p { margin: 0 0 18px; max-width: 300px; font-size: 13.5px; }
.empty-icon { width: 44px; height: 44px; padding: 12px; box-sizing: content-box; border-radius: 18px; background: var(--hover); color: var(--faint); }

/* ---------- 阅读 ---------- */
.reader-empty { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 24px; color: var(--muted); }
.reader-empty-logo { width: 64px; height: 64px; border-radius: 16px; box-shadow: 0 6px 18px rgba(15, 23, 42, .1); }
.reader-empty h3 { color: var(--text); margin: 16px 0 6px; font-size: 16px; }
.reader-empty p { margin: 0; font-size: 13px; }
.reader-empty kbd { margin: 0 2px; }
.reader-loading { flex: 1; display: grid; place-items: center; color: var(--faint); }
.reader-loading .i { width: 26px; height: 26px; }
.reader-toolbar { display: flex; align-items: center; gap: 2px; padding: 9px 14px; border-bottom: 1px solid var(--line); background: var(--panel); min-height: 54px; }
.reader-toolbar .back-btn { display: none; margin-right: 4px; }
.tb-spacer { flex: 1; }
.reader-scroll { flex: 1; overflow-y: auto; padding: 22px 26px 40px; overscroll-behavior: contain; }
.thread-head { max-width: 900px; margin: 0 auto 16px; }
.thread-subject { margin: 0 0 10px; font-size: 22px; line-height: 1.3; font-weight: 700; letter-spacing: -.015em; word-break: break-word; }
.thread-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.thread-msgs { max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.msg { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }
.msg.collapsed { cursor: pointer; }
.msg.collapsed:hover { border-color: var(--line-strong); }
.msg-head { display: flex; gap: 12px; padding: 14px 16px; align-items: flex-start; }
.msg.collapsed .msg-head { padding: 11px 16px; align-items: center; }
.msg.expanded .msg-head { cursor: pointer; }
.msg-who { flex: 1; min-width: 0; }
.msg-line1 { display: flex; align-items: baseline; gap: 6px; min-width: 0; }
.msg-name { font-weight: 600; white-space: nowrap; }
.msg-addr { color: var(--muted); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg.collapsed .msg-addr { display: none; }
.msg-line2 { font-size: 12.5px; color: var(--muted); margin-top: 1px; min-width: 0; }
.msg-details-btn { color: var(--muted); max-width: 100%; }
.msg-details-btn span, .msg-details-btn { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-details-btn .i { width: 14px; height: 14px; transition: transform .15s; }
.msg-details-btn.open .i { transform: rotate(180deg); }
.msg-snippet { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg.expanded .when-collapsed, .msg.collapsed .when-expanded { display: none; }
.msg-side { display: flex; align-items: center; gap: 2px; color: var(--muted); font-size: 12.5px; white-space: nowrap; }
.msg-side time { margin-right: 6px; }
.msg-att-ind { display: inline-flex; margin-right: 4px; color: var(--faint); }
.msg-att-ind .i { width: 14px; height: 14px; }
.msg-details { margin: -4px 16px 12px 68px; padding: 10px 14px; background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius); font-size: 13px; }
.msg-details dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 5px 14px; }
.msg-details dt { color: var(--muted); }
.msg-details dd { margin: 0; word-break: break-all; }
.msg-body { padding: 0 20px 18px 68px; }
.msg.collapsed .msg-body { display: none; }
.html-frame { border-radius: 8px; overflow: hidden; background: #fff; }
[data-theme="dark"] .html-frame { padding: 14px; border-radius: 10px; }
.html-frame iframe { display: block; width: 100%; height: 120px; border: 0; background: #fff; }
.text-body { white-space: pre-wrap; word-break: break-word; line-height: 1.65; font-size: 14.5px; }
.text-body.quoted { color: var(--muted); margin-top: 8px; padding-left: 12px; border-left: 3px solid var(--line-strong); }
.quote-toggle { display: inline-grid; place-items: center; width: 34px; height: 20px; margin-top: 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--hover); color: var(--muted); cursor: pointer; }
.quote-toggle:hover { color: var(--text); border-color: var(--line-strong); }
.quote-toggle .i { width: 16px; height: 16px; }
.remote-banner { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; padding: 8px 12px; margin-bottom: 10px; border-radius: 9px; background: var(--panel-2); border: 1px solid var(--line); font-size: 12.5px; color: var(--muted); }
.remote-banner .i { width: 15px; height: 15px; color: var(--ok); }
.remote-banner span { flex: 1; min-width: 200px; }
.remote-banner.compact { display: inline-flex; padding: 3px 10px; margin-bottom: 8px; border-radius: 99px; background: var(--ok-soft); border-color: transparent; color: var(--ok); font-size: 12px; cursor: default; }
.remote-banner.compact[hidden] { display: none; }
.remote-banner.compact span { min-width: 0; }
.remote-banner.compact .i { width: 13px; height: 13px; }
.msg-atts { margin: 0 20px 18px 68px; padding-top: 14px; border-top: 1px dashed var(--line); }
.msg-atts-head { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
.msg-atts-head .i { width: 14px; height: 14px; }
.att-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.att-card { position: relative; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 11px; overflow: hidden; background: var(--panel); transition: border-color .12s, box-shadow .12s; }
.att-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); }
.att-preview { height: 104px; border: 0; padding: 0; background: var(--panel-2); display: grid; place-items: center; cursor: pointer; overflow: hidden; }
.att-preview img { width: 100%; height: 100%; object-fit: cover; }
.att-info { display: flex; flex-direction: column; padding: 8px 40px 9px 11px; min-width: 0; border-top: 1px solid var(--line); }
.att-name { font-size: 13px; font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.att-size { font-size: 11.5px; color: var(--muted); }
.att-dl { position: absolute; right: 6px; bottom: 8px; }
.ficon { display: inline-grid; place-items: center; width: 34px; height: 40px; border-radius: 6px; font: 700 9.5px/1 var(--font); color: #fff; background: #8e8e93; letter-spacing: .02em; flex: none; position: relative; overflow: hidden; }
.ficon::after { content: ""; position: absolute; top: 0; right: 0; border-style: solid; border-width: 0 9px 9px 0; border-color: transparent var(--panel) transparent transparent; opacity: .9; }
.ficon.lg { width: 46px; height: 56px; font-size: 11px; border-radius: 8px; }
.ficon.lg::after { border-width: 0 12px 12px 0; }
.f-pdf { background: #e5484d; }
.f-image { background: #8e4ec6; }
.f-zip { background: #a18072; }
.f-doc { background: #2f6fde; }
.f-xls { background: #2b9a66; }
.f-ppt { background: #e5732e; }
.f-audio, .f-video { background: #d6409f; }
.f-text { background: #6e7781; }
.reply-bar { max-width: 900px; margin: 14px auto 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.reply-bar .btn { height: 38px; border-radius: 10px; padding: 0 16px; }
.reply-hint { font-size: 12.5px; color: var(--muted); margin-left: auto; }
.reply-hint b { color: var(--text-2); font-weight: 600; }

/* 灯箱 */
.lightbox { position: fixed; inset: 0; z-index: 90; background: rgba(8, 10, 14, .9); display: grid; place-items: center; animation: fade .15s; }
.lightbox img { max-width: calc(100vw - 140px); max-height: calc(100vh - 120px); border-radius: 8px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); background: #fff; }
.lb-top { position: absolute; top: 0; left: 0; right: 0; display: flex; align-items: center; gap: 4px; padding: 12px 16px; color: #fff; }
.lb-name { flex: 1; font-size: 13.5px; opacity: .85; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lightbox .icon-btn { color: #fff; }
.lightbox .icon-btn:hover { background: rgba(255, 255, 255, .12); }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .1); color: #fff; display: grid; place-items: center; cursor: pointer; }
.lb-nav:hover { background: rgba(255, 255, 255, .2); }
.lb-nav.prev { left: 20px; }
.lb-nav.next { right: 20px; }
@keyframes fade { from { opacity: 0; } }

/* ---------- 写信窗口 ---------- */
.composer {
  position: fixed; right: 24px; bottom: 0; z-index: 60;
  width: 600px; height: min(680px, calc(100vh - 80px));
  display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line); border-bottom: 0;
  border-radius: 14px 14px 0 0; box-shadow: var(--shadow-lg);
  transform: translateY(20px); opacity: 0; transition: transform .22s var(--ease), opacity .18s, width .2s var(--ease), height .2s var(--ease);
}
.composer.show { transform: none; opacity: 1; }
.composer.minimized { height: 48px; width: 320px; overflow: hidden; }
.composer.minimized .composer-body, .composer.minimized .composer-foot { display: none; }
.composer.maximized { right: 50%; bottom: 50%; transform: translate(50%, 50%); width: min(1000px, calc(100vw - 48px)); height: min(820px, calc(100vh - 48px)); border-radius: 16px; border-bottom: 1px solid var(--line); }
.composer.maximized.show { transform: translate(50%, 50%); }
.composer-head { display: flex; align-items: center; gap: 8px; height: 48px; padding: 0 8px 0 18px; border-bottom: 1px solid var(--line); flex: none; cursor: default; user-select: none; }
.composer.minimized .composer-head { cursor: pointer; background: var(--text); color: var(--panel); border-radius: 14px 14px 0 0; }
.composer.minimized .composer-head .icon-btn { color: inherit; opacity: .8; }
.composer-title { flex: 1; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.composer-head-actions { display: flex; gap: 0; }
.composer-body { flex: 1; overflow-y: auto; display: flex; flex-direction: column; min-height: 0; }
.c-row { position: relative; display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 4px 16px; border-bottom: 1px solid var(--line); }
.c-row > label { width: 48px; flex: none; color: var(--muted); font-size: 13px; }
.c-from .from-fields { flex: 1; display: flex; align-items: center; gap: 8px; min-width: 0; }
.from-name { font-weight: 600; cursor: pointer; padding: 3px 8px; border-radius: 7px; white-space: nowrap; max-width: 160px; overflow: hidden; text-overflow: ellipsis; }
.from-name:hover { background: var(--hover); }
.from-addr { display: flex; align-items: center; flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 8px; height: 32px; padding: 0 2px 0 10px; background: var(--panel-2); transition: border-color .15s, box-shadow .15s; }
.from-addr:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); background: var(--panel); }
.from-local { flex: 1; min-width: 60px; border: 0; outline: none; background: transparent; text-align: right; font-weight: 500; }
.from-at { color: var(--muted); padding: 0 2px; }
.from-domain { border: 0; outline: none; background: transparent; font-weight: 500; max-width: 220px; cursor: pointer; padding-right: 4px; }
.row-extra { display: flex; gap: 10px; font-size: 13px; }
.row-extra .link-btn { color: var(--muted); }
.row-extra .link-btn:hover { color: var(--accent-text); }
.c-subject input { flex: 1; border: 0; outline: none; background: transparent; font-size: 15px; font-weight: 600; height: 36px; }
.c-subject input::placeholder { color: var(--faint); font-weight: 500; }
.send-warn:empty { display: none; }
.send-warn .notice { margin: 8px 16px 0; }
.rcpt { position: relative; flex: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 5px; min-width: 0; padding: 4px 0; cursor: text; }
.rcpt-input { flex: 1; min-width: 120px; border: 0; outline: none; background: transparent; height: 28px; }
.chip-addr { display: inline-flex; align-items: center; gap: 3px; height: 26px; padding: 0 3px 0 10px; border-radius: 99px; background: var(--accent-soft); color: var(--accent-text); font-size: 13px; font-weight: 500; max-width: 260px; }
.chip-addr span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip-addr button { width: 20px; height: 20px; border: 0; border-radius: 50%; background: none; color: inherit; display: grid; place-items: center; cursor: pointer; opacity: .7; padding: 0; }
.chip-addr button:hover { opacity: 1; background: rgba(0, 0, 0, .08); }
.chip-addr button .i { width: 13px; height: 13px; }
.chip-addr.invalid { background: var(--err-soft); color: var(--err); }
.sugg { position: absolute; left: -8px; top: calc(100% + 4px); z-index: 5; min-width: 300px; max-width: 420px; background: var(--panel); border: 1px solid var(--line); border-radius: 11px; box-shadow: var(--shadow-lg); padding: 5px; }
.sugg-item { display: flex; flex-direction: column; align-items: flex-start; width: 100%; padding: 7px 10px; border: 0; border-radius: 8px; background: none; cursor: pointer; text-align: left; }
.sugg-item.active, .sugg-item:hover { background: var(--accent-soft); }
.sugg-name { font-weight: 600; font-size: 13.5px; }
.sugg-addr { font-size: 12.5px; color: var(--muted); }
.editor-slot { flex: 1; display: flex; flex-direction: column; min-height: 220px; }
.editor { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.editor-toolbar { display: flex; align-items: center; gap: 1px; padding: 6px 12px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tb-btn { width: 30px; height: 30px; border: 0; border-radius: 7px; background: none; color: var(--muted); display: grid; place-items: center; cursor: pointer; }
.tb-btn:hover { background: var(--hover); color: var(--text); }
.tb-btn.on { background: var(--accent-soft); color: var(--accent-text); }
.tb-btn .i { width: 16px; height: 16px; }
.tb-sep { width: 1px; height: 18px; background: var(--line); margin: 0 5px; }
.editor-area { flex: 1; padding: 14px 18px; outline: none; overflow-y: auto; line-height: 1.65; font-size: 14.5px; word-break: break-word; min-height: 160px; }
.editor-area.empty::before { content: attr(data-placeholder); color: var(--faint); position: absolute; pointer-events: none; }
.editor-area p { margin: 0 0 .5em; }
.editor-area blockquote { margin: 6px 0; padding-left: 12px; border-left: 3px solid var(--line-strong); color: var(--muted); }
.editor-area .signature { color: var(--muted); margin-top: 8px; }
.editor-area .cfm-quote { color: var(--muted); }
.editor-area .cfm-quote-head { font-size: 13px; margin-bottom: 4px; }
.editor-area img { max-width: 100%; }
.editor-area a { color: var(--accent-text); text-decoration: underline; }
.editor-area ul, .editor-area ol { padding-left: 1.6em; margin: .3em 0; }
.c-attachments { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 16px; }
.c-attachments:not(:empty) { padding: 10px 16px 12px; border-top: 1px solid var(--line); }
.att-chip { position: relative; display: flex; align-items: center; gap: 9px; width: 228px; padding: 7px 6px 7px 8px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel-2); overflow: hidden; }
.att-chip .ficon { width: 28px; height: 34px; font-size: 8.5px; }
.att-chip .ficon::after { border-width: 0 7px 7px 0; border-color: transparent var(--panel-2) transparent transparent; }
.att-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.att-chip.error { border-color: color-mix(in srgb, var(--err) 40%, var(--line)); background: var(--err-soft); }
.att-chip.error .att-size { color: var(--err); }
.att-progress { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--line); }
.att-progress i { display: block; height: 100%; background: var(--accent); transition: width .15s; }
.composer-foot { display: flex; align-items: center; gap: 6px; padding: 10px 12px 10px 14px; border-top: 1px solid var(--line); flex: none; }
.send-btn { height: 38px; padding: 0 18px 0 16px; border-radius: 10px; }
.file-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.size-meter { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.size-meter.over { color: var(--err); font-weight: 600; }
.draft-status { margin-left: auto; font-size: 12px; color: var(--faint); white-space: nowrap; }
.drop-overlay { position: absolute; inset: 48px 0 0; display: none; flex-direction: column; align-items: center; justify-content: center; gap: 10px; background: color-mix(in srgb, var(--accent-soft) 92%, transparent); border: 2px dashed var(--accent); border-radius: 0 0 12px 12px; color: var(--accent-text); font-weight: 600; pointer-events: none; }
.drop-overlay .i { width: 32px; height: 32px; }
.composer.dragging .drop-overlay { display: flex; }

/* ---------- 页面 ---------- */
.page { max-width: 1040px; margin: 0 auto; padding: 28px 32px 60px; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.page-head h1 { margin: 0 0 4px; font-size: 24px; letter-spacing: -.02em; }
.page-head p { margin: 0; }
.domain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; }
.domain-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); padding: 16px; display: flex; flex-direction: column; gap: 12px; box-shadow: var(--shadow-sm); transition: box-shadow .15s, border-color .15s; }
.domain-card:hover { box-shadow: var(--shadow); border-color: var(--line-strong); }
.dc-head { display: flex; align-items: center; gap: 12px; }
.dc-icon { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); }
.dc-title { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.dc-title b { font-size: 15.5px; overflow: hidden; text-overflow: ellipsis; }
.dc-rows { display: flex; flex-direction: column; gap: 8px; padding: 12px; background: var(--panel-2); border-radius: var(--radius); }
.dc-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.dc-label { display: inline-flex; align-items: center; gap: 6px; width: 56px; font-size: 13px; color: var(--muted); }
.dc-label .i { width: 15px; height: 15px; }
.dc-detail { font-size: 12.5px; color: var(--muted); line-height: 1.5; }
.dc-switch { margin-left: auto; }
.dc-foot { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }
.card-empty { border: 1px dashed var(--line-strong); border-radius: var(--radius-lg); }
.add-domain .search-field { position: relative; margin-bottom: 12px; }
.add-domain .search-field .i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--faint); width: 16px; height: 16px; }
.add-domain .search-field .input { padding-left: 36px; }
.zone-list { max-height: 52vh; overflow-y: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.zone-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.zone-row:last-child { border-bottom: 0; }
.zone-row:hover { background: var(--panel-2); }
.zone-name { display: flex; align-items: center; gap: 9px; font-weight: 500; }
.zone-name .i { width: 16px; height: 16px; color: var(--faint); }
.zone-loading { padding: 30px; text-align: center; color: var(--muted); display: flex; gap: 8px; justify-content: center; align-items: center; }
.prov h4 { display: flex; align-items: center; gap: 8px; margin: 0 0 14px; font-size: 16px; }
.prov h4 .i { color: var(--accent-text); }
.prov h4 .ok-ic { color: var(--ok); }
.prov h4 .err-ic { color: var(--err); }
.steps { list-style: none; margin: 0 0 14px; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.steps li { display: flex; align-items: flex-start; gap: 10px; padding: 8px 10px; border-radius: 9px; color: var(--muted); }
.steps li.doing { color: var(--text); background: var(--panel-2); font-weight: 600; }
.steps li.done { color: var(--text); }
.steps li div { display: flex; flex-direction: column; }
.steps li div span { font-size: 12.5px; color: var(--muted); font-weight: 400; }
.step-ic { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; border: 1.5px solid var(--line-strong); flex: none; }
.step-ic .i { width: 13px; height: 13px; }
.steps li.done .step-ic { background: var(--ok); border-color: var(--ok); color: #fff; }
.steps li.doing .step-ic { border-color: transparent; color: var(--accent); }
.steps li.doing .step-ic .i { width: 18px; height: 18px; }
.steps li.fail .step-ic { background: var(--warn-soft); border-color: var(--warn); color: var(--warn); }
.mx-list { margin: 6px 0 0; padding-left: 18px; }
.mx-list li { margin: 3px 0; }
.mx-list .muted { margin-left: 8px; font-size: 12px; }
.modal-inline-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; }
.tab { display: inline-flex; align-items: center; gap: 7px; padding: 10px 12px; color: var(--muted); font-weight: 550; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; text-decoration: none !important; }
.tab .i { width: 16px; height: 16px; }
.tab:hover { color: var(--text); }
.tab.on { color: var(--accent-text); border-color: var(--accent); }
.set-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); margin-bottom: 14px; overflow: hidden; }
.set-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.set-row:last-child { border-bottom: 0; }
.set-row > div:first-child { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.set-row b { display: inline-flex; align-items: center; gap: 8px; }
.set-row b .i { width: 17px; height: 17px; color: var(--accent-text); }
.set-row span { color: var(--muted); font-size: 13px; }
.set-sub { padding: 12px 18px 16px; border-top: 1px solid var(--line); }
.set-sub b { display: block; font-size: 13px; margin-bottom: 8px; }
.set-empty { padding: 18px; font-size: 13.5px; }
.form-inline { display: flex; gap: 8px; padding: 0 18px 16px; }
.seg { display: inline-flex; padding: 3px; border-radius: 10px; background: var(--hover); flex: none; }
.seg button { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; border: 0; border-radius: 8px; background: none; color: var(--muted); font-weight: 550; font-size: 13px; cursor: pointer; white-space: nowrap; }
.seg button .i { width: 15px; height: 15px; }
.seg button.on { background: var(--panel); color: var(--text); box-shadow: var(--shadow-sm); }
.switch { position: relative; width: 42px; height: 24px; flex: none; cursor: pointer; }
.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.switch span { position: absolute; inset: 0; border-radius: 99px; background: var(--line-strong); transition: background .2s; }
.switch span::after { content: ""; position: absolute; left: 3px; top: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .25); transition: transform .2s var(--ease); }
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::after { transform: translateX(18px); }
.switch input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.pill-list { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { display: inline-flex; align-items: center; gap: 2px; height: 26px; padding: 0 3px 0 10px; border-radius: 99px; background: var(--hover); font-size: 12.5px; }
.pill button { width: 20px; height: 20px; border: 0; border-radius: 50%; background: none; color: var(--muted); display: grid; place-items: center; cursor: pointer; padding: 0; }
.pill button:hover { background: var(--active); color: var(--text); }
.pill button .i { width: 12px; height: 12px; }
.id-list { display: flex; flex-direction: column; }
.id-row { display: flex; align-items: center; gap: 12px; padding: 12px 18px; border-top: 1px solid var(--line); }
.id-ic { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); }
.id-ic .i { width: 16px; height: 16px; }
.id-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.sig-slot .editor { border: 1px solid var(--line-strong); border-radius: 10px; overflow: hidden; }
.sig-slot .editor-area { min-height: 120px; max-height: 260px; }
.shortcuts { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0; }
.sc-group { padding: 16px 18px; border-right: 1px solid var(--line); }
.sc-group:last-child { border-right: 0; }
.sc-group h4 { margin: 0 0 10px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.sc-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 6px 0; font-size: 13.5px; }
.sc-row > span:last-child { white-space: nowrap; display: inline-flex; gap: 4px; align-items: center; }
.modal .shortcuts { border: 0; }

/* ---------- 登录 / 配置 ---------- */
.auth { display: grid; grid-template-columns: 1.1fr 1fr; height: 100vh; height: 100dvh; overflow: auto; }
.auth-hero {
  position: relative; padding: clamp(96px, 14vh, 140px) 56px 0; color: #fff; display: flex; flex-direction: column; justify-content: flex-start; gap: 24px; overflow: hidden;
  background: radial-gradient(1200px 600px at -10% -20%, #1b8cff 0%, transparent 60%), radial-gradient(900px 600px at 120% 120%, #0a2a6e 0%, transparent 60%), linear-gradient(140deg, #0a6cf0 0%, #0050c0 45%, #0b2a6b 100%);
}
.auth-hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px); background-size: 22px 22px; mask-image: linear-gradient(180deg, transparent, #000 40%, transparent); pointer-events: none; }
.auth-hero .brand { color: #fff; position: absolute; top: 36px; left: 56px; z-index: 1; }
.auth-hero .brand-ws { color: #9fd0ff; }
.auth-hero .brand-logo { box-shadow: 0 4px 14px rgba(0, 0, 0, .25); }
.auth-hero h1 { margin: 0; font-size: 40px; line-height: 1.18; letter-spacing: -.03em; font-weight: 700; position: relative; z-index: 1; }
.auth-points { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 28px; max-width: 660px; position: relative; z-index: 1; }
.auth-points li { display: flex; gap: 14px; align-items: flex-start; }
.auth-points .i { width: 20px; height: 20px; padding: 9px; box-sizing: content-box; border-radius: 11px; background: rgba(255, 255, 255, .14); flex: none; }
.auth-points b { display: block; font-size: 14.5px; }
.auth-points span { font-size: 12.5px; line-height: 1.5; opacity: .78; }
.auth-panel { display: grid; place-items: center; padding: 32px; background: var(--bg); }
.auth-card { width: min(380px, 100%); text-align: center; background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 36px 30px 26px; box-shadow: var(--shadow); }
.auth-card h2 { margin: 0 0 4px; font-size: 22px; letter-spacing: -.01em; }
.auth-card > p { margin: 0 0 24px; }
.auth-card > p.auth-foot { margin: 18px 0 0; line-height: 1.6; }
.auth-card > p.lang-switch { margin: 18px 0 0; }
.auth-card > p.auth-foot + p.lang-switch { margin-top: 4px; }
.gh-link { display: inline-flex; align-items: center; gap: 4px; vertical-align: bottom; text-decoration: none; }
.gh-link .i { width: 14px; height: 14px; }
.setup-page { height: 100vh; height: 100dvh; overflow: auto; display: grid; place-items: center; padding: 32px 16px; }
.setup-card { width: min(760px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 32px 36px; box-shadow: var(--shadow); }
.setup-card h1 { font-size: 22px; margin: 22px 0 8px; letter-spacing: -.01em; }
.setup-steps { counter-reset: s; list-style: none; padding: 0; margin: 22px 0; display: flex; flex-direction: column; gap: 14px; }
.setup-steps li { counter-increment: s; position: relative; padding: 2px 0 2px 42px; display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.setup-steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); font-weight: 700; font-size: 13px; }
.setup-steps li > span { color: var(--muted); font-size: 13.5px; line-height: 1.6; }
.scope-list { display: flex; flex-wrap: wrap; gap: 5px; }
.code { display: flex; align-items: center; gap: 4px; max-width: 100%; background: var(--panel-2); border: 1px solid var(--line); border-radius: 9px; padding: 3px 3px 3px 10px; }
.code code { background: none; padding: 0; overflow-x: auto; white-space: nowrap; }
.code .icon-btn .copied { display: none; color: var(--ok); }
.code .icon-btn.done .copied { display: block; }
.code .icon-btn.done .copy-ic { display: none; }
.copy-ic { display: grid; }

/* ---------- 浮层 ---------- */
.modal-backdrop { position: fixed; inset: 0; z-index: 80; background: rgba(10, 14, 22, .42); display: grid; place-items: center; padding: 20px; opacity: 0; transition: opacity .15s; backdrop-filter: blur(2px); }
.modal-backdrop.show { opacity: 1; }
.modal { width: min(460px, 100%); max-height: calc(100vh - 40px); max-height: calc(100dvh - 40px); display: flex; flex-direction: column; background: var(--panel); border-radius: 16px; box-shadow: var(--shadow-lg); border: 1px solid var(--line); transform: translateY(8px) scale(.98); transition: transform .18s var(--ease); }
.modal.wide { width: min(640px, 100%); }
.modal-backdrop.show .modal { transform: none; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 14px 10px 22px; }
.modal-head h3 { margin: 0; font-size: 16.5px; }
.modal-body { padding: 6px 22px 18px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 18px 16px; border-top: 1px solid var(--line); }
.dialog-text { margin: 0; color: var(--text-2); line-height: 1.6; }
.menu { position: fixed; z-index: 95; min-width: 200px; max-width: 340px; padding: 5px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-lg); opacity: 0; transform: translateY(-4px); transition: opacity .12s, transform .12s; }
.menu.show { opacity: 1; transform: none; }
.menu-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 7px 10px; border: 0; border-radius: 8px; background: none; text-align: left; cursor: pointer; font-size: 13.5px; color: var(--text); }
.menu-item:hover:not(:disabled) { background: var(--hover); }
.menu-item:disabled { opacity: .45; cursor: default; }
.menu-item .i { width: 16px; height: 16px; color: var(--muted); }
.menu-item span { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.menu-item kbd { margin-left: 10px; }
.menu-item.danger, .menu-item.danger .i { color: var(--err); }
.menu-item .menu-check { color: var(--accent); }
.menu-sep { height: 1px; background: var(--line); margin: 5px 4px; }
.menu-header { padding: 6px 10px 4px; font-size: 11.5px; font-weight: 600; color: var(--faint); text-transform: uppercase; letter-spacing: .05em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.toasts { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { pointer-events: auto; display: flex; align-items: center; gap: 10px; min-width: 260px; max-width: min(560px, calc(100vw - 32px)); padding: 9px 8px 9px 16px; border-radius: 12px; background: #1f2329; color: #fff; box-shadow: var(--shadow-lg); font-size: 13.5px; opacity: 0; transform: translateY(10px); transition: opacity .18s, transform .2s var(--ease); }
[data-theme="dark"] .toast { background: #2b3038; }
.toast.show { opacity: 1; transform: none; }
.toast .i { width: 17px; height: 17px; }
.toast.error { background: #c4372c; }
.toast.success .i { color: #4ade80; }
.toast-msg { flex: 1; }
.toast-action { border: 0; background: none; color: #8cc8ff; font-weight: 600; cursor: pointer; padding: 4px 8px; border-radius: 7px; white-space: nowrap; }
.toast.error .toast-action { color: #fff; text-decoration: underline; }
.toast-action:hover { background: rgba(255, 255, 255, .1); }
.toast-close { border: 0; background: none; color: rgba(255, 255, 255, .6); width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; cursor: pointer; }
.toast-close:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.toast-close .i { width: 14px; height: 14px; }
.fab { position: fixed; right: 18px; bottom: calc(18px + env(safe-area-inset-bottom)); z-index: 50; width: 56px; height: 56px; border-radius: 18px; border: 0; background: var(--accent-btn); color: #fff; box-shadow: 0 12px 28px -6px rgba(37, 99, 235, .5); display: grid; place-items: center; cursor: pointer; }
.fab .i { width: 22px; height: 22px; }

/* 滚动条 */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 10px; border: 3px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background-color: var(--faint); }

/* ---------- 响应式 ---------- */
@media (max-width: 1280px) {
  :root { --list-w: 360px; --sidebar-w: 232px; }
}
/* 中屏：列表与阅读二选一 */
@media (max-width: 1080px) {
  .workspace { grid-template-columns: 1fr; }
  .workspace .resizer { display: none; }
  .workspace .reader-pane { display: none; }
  .workspace.reading .list-pane { display: none; }
  .workspace.reading .reader-pane { display: flex; }
  .list-pane { border-right: 0; }
  .reader-toolbar .back-btn { display: grid; }
}
/* 小屏：侧栏变抽屉 */
@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .mobile-only { display: grid !important; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: min(280px, 86vw); z-index: 70; background: var(--panel); transform: translateX(-100%); visibility: hidden; transition: transform .22s var(--ease), visibility 0s .22s; }
  .app.nav-open .sidebar { transform: none; visibility: visible; box-shadow: var(--shadow-lg); transition: transform .22s var(--ease); }
  .sidebar-backdrop { display: block; position: fixed; inset: 0; z-index: 65; background: rgba(0, 0, 0, .35); opacity: 0; pointer-events: none; transition: opacity .2s; }
  .app.nav-open .sidebar-backdrop { opacity: 1; pointer-events: auto; }
  .topbar { padding: 0 10px 0 6px; gap: 6px; }
  .topbar-right [data-help] { display: none; }
  .search-kbd { display: none; }
  .workspace { margin: 0; border-radius: 0; border-left: 0; border-right: 0; border-bottom: 0; }
  .reader-scroll { padding: 16px 12px 90px; }
  .msg-body, .msg-atts { padding-left: 16px; padding-right: 16px; margin-left: 0; margin-right: 0; }
  .msg-atts { margin: 0 16px 16px; padding-left: 0; padding-right: 0; }
  .msg-details { margin-left: 16px; }
  .msg-addr { display: none; }
  .thread-subject { font-size: 19px; }
  .reply-hint { display: none; }
  .composer, .composer.maximized { right: 0; left: 0; bottom: 0; top: 0; width: 100%; height: 100%; border-radius: 0; transform: translateY(30px); }
  .composer.show, .composer.maximized.show { transform: none; }
  .composer.minimized { top: auto; height: 48px; }
  .composer [data-act="max"] { display: none; }
  .auth { display: block; }
  .auth-hero { padding: calc(24px + env(safe-area-inset-top)) 22px 26px; gap: 20px; justify-content: flex-start; }
  .auth-hero .brand { position: static; }
  .auth-hero h1 { font-size: 26px; line-height: 1.25; }
  .auth-points { grid-template-columns: 1fr 1fr; gap: 10px 12px; }
  .auth-points li { gap: 8px; align-items: center; }
  .auth-points .i { width: 16px; height: 16px; padding: 7px; border-radius: 9px; }
  .auth-points b { font-size: 13.5px; line-height: 1.3; }
  .auth-points span { display: none; }
  .auth-panel { display: block; padding: 20px 16px calc(32px + env(safe-area-inset-bottom)); }
  .auth-card { margin: 0 auto; padding: 24px 20px 20px; }
  .auth-card h2 { margin-top: 0; }
  .page { padding: 20px 16px 80px; }
  .page-head { flex-direction: column; }
  .set-row { flex-direction: column; align-items: flex-start; }
  .row-hover { display: none !important; }
  .row:hover .row-top time, .row:hover .row-icons { visibility: visible; }
  .setup-card { padding: 24px 20px; }
}

/* ---------- 打印 ---------- */
@media print {
  body { overflow: visible; background: #fff; }
  .sidebar, .topbar, .list-pane, .reader-toolbar, .reply-bar, .fab, .composer, .toasts, .msg-side .icon-btn, .quote-toggle, .remote-banner { display: none !important; }
  .app, .content, .workspace { display: block; height: auto; margin: 0; border: 0; box-shadow: none; }
  .reader-pane, .reader-scroll { display: block !important; overflow: visible; padding: 0; background: #fff; }
  .msg { break-inside: avoid; box-shadow: none; }
  .msg.collapsed .msg-body { display: block; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}


/* ================= v3：新增组件 ================= */
.skip-link { position: absolute; left: 12px; top: -40px; z-index: 200; padding: 8px 14px; border-radius: 8px; background: var(--accent-btn); color: #fff; }
.skip-link:focus { top: 10px; }

/* 搜索提示 */
.search-hints { position: absolute; left: 0; right: 0; top: calc(100% + 6px); z-index: 30; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-lg); padding: 6px; display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.hint-title { grid-column: 1 / -1; padding: 6px 10px 4px; font-size: 11.5px; font-weight: 600; color: var(--muted); }
.hint { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 7px 10px; border: 0; border-radius: 8px; background: none; cursor: pointer; text-align: left; }
.hint:hover { background: var(--hover); }
.hint code { font-size: 12px; }
.hint span { font-size: 12.5px; color: var(--muted); }

/* 列表宽度拖动 */
.resizer { position: relative; z-index: 3; cursor: col-resize; width: 0; }
.resizer::after { content: ""; position: absolute; top: 0; bottom: 0; left: -3px; width: 7px; }
.resizer:hover::before, .resizer:focus-visible::before, body.resizing .resizer::before { content: ""; position: absolute; top: 0; bottom: 0; left: -1px; width: 3px; background: var(--accent); opacity: .5; }
body.resizing { cursor: col-resize; user-select: none; }
body.resizing iframe { pointer-events: none; }
/* 关闭阅读窗格：列表与阅读二选一 */
[data-pane="off"] .workspace:not(.paged) { grid-template-columns: 1fr; }
[data-pane="off"] .workspace .resizer, [data-pane="off"] .workspace .reader-pane { display: none; }
[data-pane="off"] .workspace.reading .list-pane { display: none; }
[data-pane="off"] .workspace.reading .reader-pane { display: flex; }
[data-pane="off"] .reader-toolbar .back-btn { display: grid; }
[data-pane="off"] .list-pane { border-right: 0; }

/* 侧栏 */
.sb-section { flex: none; margin-top: 16px; }
.sb-section.grow { flex: 1; }
.sb-section > .nav-item { margin-left: 2px; }
button.sb-empty { width: calc(100% - 4px); background: none; cursor: pointer; text-align: left; }
.label-dot { width: 9px; height: 9px; border-radius: 3px; background: var(--lc, #888); flex: none; display: inline-block; }
.label-dot.lg { width: 14px; height: 14px; border-radius: 5px; margin: 0 10px; }
.nav-item .label-dot { margin: 0 4px 0 5px; }
.addr-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--lc); margin-left: -12px; margin-right: 2px; flex: none; }
.nav-note { margin-left: 6px; font-size: 11.5px; color: var(--text-2); opacity: .85; }
.nav-mini { width: 13px !important; height: 13px !important; color: var(--faint); }
.nav-item.blocked .nav-label { text-decoration: line-through; color: var(--faint); }

/* 头像：品牌图标 */
.avatar { position: relative; overflow: hidden; }
.avatar .av-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; padding: 18%; background: #fff; opacity: 0; transition: opacity .2s; }
.avatar.has-img .av-img { opacity: 1; }
.avatar.has-img::after { content: ""; position: absolute; inset: 0; border-radius: 50%; box-shadow: inset 0 0 0 1px var(--line); pointer-events: none; }
[data-theme="dark"] .avatar .av-img { background: #f4f5f7; }
.avatar.sched { --av: #2f7bff; }
.avatar.sched .i { width: 17px; height: 17px; }

/* 列表行 */
.row-icons { gap: 4px; align-items: center; }
.dlv { display: inline-flex; }
.dlv.ok { color: var(--ok); }
.dlv.bad { color: var(--err); }
.sched-tag { color: var(--accent-text); font-weight: 600; margin-right: 6px; }
.sched-tag.bad { color: var(--err); }
.tag.label-tag { color: color-mix(in srgb, var(--lc) 75%, var(--text)); background: color-mix(in srgb, var(--lc) 13%, transparent); gap: 5px; }
.tag.label-tag .label-dot { width: 7px; height: 7px; border-radius: 50%; }
.tag.label-tag button, .tag.snooze-tag button { border: 0; background: none; color: inherit; padding: 0; margin-left: 2px; display: grid; place-items: center; width: 14px; height: 14px; border-radius: 4px; cursor: pointer; opacity: .6; }
.tag.label-tag button:hover, .tag.snooze-tag button:hover { opacity: 1; background: rgba(0, 0, 0, .08); }
.tag.snooze-tag { color: var(--warn); background: var(--warn-soft); }
.row:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.bulk { flex-wrap: wrap; gap: 2px; justify-content: flex-end; }
.bulk-btn { display: inline-flex; align-items: center; gap: 5px; height: 30px; padding: 0 9px; border: 0; border-radius: 8px; background: none; color: var(--text-2); font-size: 12.5px; font-weight: 500; cursor: pointer; }
.bulk-btn:hover { background: var(--hover); color: var(--text); }
.bulk-btn .i { width: 15px; height: 15px; }
@media (max-width: 1500px) { .bulk-btn span { display: none; } .bulk-btn { padding: 0 7px; } }
.zero-art { width: 150px; height: auto; margin-bottom: 4px; }

/* 手势 */
.row[data-swipe] { box-shadow: var(--shadow); background: var(--panel); }
.row[data-swipe="right"]::after, .row[data-swipe="left"]::after { content: ""; position: absolute; top: 0; bottom: 0; width: 100vw; display: block; }
.row[data-swipe="right"]::after { right: 100%; background: var(--ok); }
.row[data-swipe="left"]::after { left: 100%; background: var(--err); }
.row.swipe-armed::after { filter: brightness(1.1); }
.list-pane { position: relative; overflow: hidden; }
.ptr { position: absolute; left: 50%; top: 60px; z-index: 5; margin-left: -18px; width: 36px; height: 36px; border-radius: 50%; background: var(--panel); box-shadow: var(--shadow); display: grid; place-items: center; color: var(--muted); opacity: 0; pointer-events: none; }
.ptr.armed { color: var(--accent); }

/* 阅读 */
.tb-sep { width: 1px; height: 20px; background: var(--line); margin: 0 4px; }
.ai-btn { color: var(--accent-text); }
.ai-btn .i { width: 15px; height: 15px; }
.auth-badge, .delivery { display: inline-flex; align-items: center; gap: 3px; height: 20px; padding: 0 7px; border-radius: 99px; font-size: 11.5px; font-weight: 600; white-space: nowrap; margin-left: 4px; cursor: default; }
.auth-badge .i, .delivery .i { width: 12px; height: 12px; }
.auth-badge.ok, .delivery.ok { color: var(--ok); background: var(--ok-soft); }
.auth-badge.bad, .delivery.bad { color: var(--err); background: var(--err-soft); }
.delivery.muted { color: var(--muted); background: var(--hover); }
.msg-line1 { flex-wrap: wrap; row-gap: 2px; }
.msg-warn { display: flex; gap: 10px; align-items: flex-start; margin: 0 20px 14px 68px; padding: 10px 12px; border-radius: 10px; background: var(--err-soft); color: var(--err); font-size: 13px; line-height: 1.55; }
.msg-warn span { color: var(--text-2); }
.msg-warn.soft { background: var(--info-soft); color: var(--info); }
.msg-warn .i { margin-top: 1px; width: 16px; height: 16px; }
.msg.is-bounce { border-color: color-mix(in srgb, var(--err) 30%, var(--line)); }
.thread-banner { max-width: 900px; margin: 0 auto 12px; display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--panel); }
.thread-banner > .i { width: 22px; height: 22px; flex: none; }
.thread-banner div { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.thread-banner b { font-size: 13.5px; }
.thread-banner span { font-size: 12.5px; color: var(--muted); }
.thread-banner.spam { background: var(--err-soft); border-color: transparent; }
.thread-banner.spam > .i { color: var(--err); }
.thread-banner.info > .i { color: var(--accent-text); }
.ai-summary, .msg-ai { max-width: 900px; margin: 0 auto 12px; border-radius: var(--radius-lg); border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--line)); background: linear-gradient(135deg, color-mix(in srgb, #6157ff 7%, var(--panel)), color-mix(in srgb, #14c8ff 6%, var(--panel))); padding: 12px 16px; }
.msg-ai { margin: 0 20px 16px 68px; }
.ai-head { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: 13px; color: var(--accent-text); }
.ai-head .i { width: 15px; height: 15px; }
.ai-head .icon-btn { margin-left: auto; }
.ai-body { margin-top: 6px; font-size: 13.5px; line-height: 1.65; }
.ai-body p { margin: 2px 0; }
.ai-body ul { margin: 4px 0; padding-left: 20px; }
.ai-body.err { color: var(--err); }
.ai-foot { margin-top: 6px; font-size: 11.5px; color: var(--muted); }

/* 写信 */
.send-group { display: inline-flex; }
.send-group .send-btn { border-radius: 10px 0 0 10px; }
.send-more { height: 38px; padding: 0 8px; border-radius: 0 10px 10px 0; border-left: 1px solid rgba(255, 255, 255, .25) !important; }
.send-more .i { width: 15px; height: 15px; }
.from-name { border: 0; background: none; font: inherit; font-weight: 600; color: var(--text); }
.from-addr { flex: 0 1 auto; padding-right: 0; }
.from-local { flex: none; text-align: right; }
.from-domain { flex: none; }
.composer.closing { pointer-events: none; opacity: .7; }
@media (max-width: 760px) {
  .c-from .from-fields { flex-wrap: wrap; row-gap: 4px; }
  /* 显示名单独一行，地址和"常用地址"按钮在第二行 */
  .c-from .from-name { flex: 1 0 100%; max-width: 100%; text-align: left; padding-left: 0; }
  .from-addr { max-width: calc(100% - 40px); }
  .from-domain { max-width: 150px; }
}

/* 菜单：标签、颜色 */
.label-menu { min-width: 230px; }
.label-items { max-height: 260px; overflow-y: auto; }
.check-item { cursor: pointer; }
.check-item input { margin: 0 2px 0 0; accent-color: var(--accent); }
.menu-empty { padding: 8px 10px; color: var(--muted); font-size: 13px; }
.color-row { display: flex; gap: 8px; padding: 6px 4px; flex-wrap: wrap; }
.color-dot { width: 24px; height: 24px; border-radius: 50%; border: 2px solid transparent; background: var(--lc); cursor: pointer; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .08); }
.color-dot.on { border-color: var(--text); }
.color-dot.none { background: repeating-linear-gradient(45deg, var(--hover), var(--hover) 4px, var(--panel) 4px, var(--panel) 8px); }
.color-menu { padding: 8px; }

/* 登录：成员 */
.auth-divider { display: flex; align-items: center; gap: 10px; margin: 22px 0 14px; color: var(--muted); font-size: 12px; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.member-login { display: grid; gap: 8px; }
.member-login .notice { margin: 0; text-align: left; }

/* 域名健康检查 */
.health-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.health-list li { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; border-radius: 10px; background: var(--panel-2); }
.health-list li div { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.health-list li span:not(.status):not(.h-ic) { font-size: 12.5px; color: var(--muted); word-break: break-all; }
.h-ic { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; flex: none; }
.h-ic .i { width: 13px; height: 13px; }
.health-list li.ok .h-ic { background: var(--ok); color: #fff; }
.health-list li.bad .h-ic { background: var(--warn-soft); color: var(--warn); }
.modal-inline-actions .muted { margin-right: auto; align-self: center; }
.dc-icon { background: color-mix(in srgb, var(--av) 14%, var(--panel)); color: var(--av); }

/* 地址管理 */
.page-search { position: relative; max-width: 420px; margin-bottom: 18px; }
.page-search .i, .search-field .i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--faint); width: 16px; height: 16px; }
.page-search .input { padding-left: 36px; }
.addr-group { margin-bottom: 22px; }
.addr-group h3 { display: flex; align-items: center; gap: 8px; font-size: 14px; margin: 0 0 8px; }
.addr-group h3 .i { width: 16px; height: 16px; color: var(--muted); }
.addr-table { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); overflow: hidden; }
.addr-row { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-top: 1px solid var(--line); }
.addr-row:first-child { border-top: 0; }
.addr-row:hover { background: var(--panel-2); }
.addr-color { width: 4px; align-self: stretch; border-radius: 4px; background: var(--lc); margin-left: -6px; }
.addr-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.addr-main b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
.addr-row.blocked .addr-main b { text-decoration: line-through; color: var(--muted); }
.addr-row .status .i { width: 12px; height: 12px; }

/* 设置 */
.settings-layout { display: grid; grid-template-columns: 200px 1fr; gap: 24px; align-items: start; }
.tabs-v { position: sticky; top: 0; display: flex; flex-direction: column; gap: 2px; }
.tab-v { display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 12px; border-radius: 9px; color: var(--text-2); font-weight: 500; text-decoration: none !important; }
.tab-v .i { width: 16px; height: 16px; color: var(--muted); }
.tab-v:hover { background: var(--hover); }
.tab-v.on { background: var(--accent-soft); color: var(--accent-text); font-weight: 600; }
.tab-v.on .i { color: var(--accent-text); }
.tab-body { min-width: 0; }
.form-inline.tight { padding: 0; }
.input.sm { height: 32px; font-size: 13px; }
.input.num { width: 110px; }
.input.area { height: auto; padding: 8px 12px; resize: vertical; line-height: 1.5; }
.mini-select { height: 32px; padding: 0 8px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--panel); font-size: 13px; }
.field-label .mini-select { margin-left: 8px; font-weight: 400; }
.cond-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 6px; }
.cond-row { display: flex; gap: 6px; align-items: center; }
.cond-row .input { flex: 1; }
.cond-fill { flex: 1; }
.action-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 6px 14px; }
.chk { display: flex; align-items: center; gap: 8px; font-size: 13.5px; cursor: pointer; margin: 4px 0; }
.chk input, .pill.pick input { accent-color: var(--accent); margin: 0; }
.pill.pick { gap: 6px; padding: 0 10px; cursor: pointer; }
.pill.pick:has(input:checked) { background: var(--accent-soft); color: var(--accent-text); }
.pill.link { padding: 0 12px; gap: 6px; text-decoration: none !important; color: var(--accent-text); }
.pill.link .i { width: 13px; height: 13px; }
.scope-domains { margin: 6px 0 4px; }
.scope-domains.dim { opacity: .45; pointer-events: none; }
.id-row.disabled { opacity: .55; }
.id-row .switch { margin-right: 4px; }
.big-num { font-size: 22px; font-weight: 700; letter-spacing: -.02em; white-space: nowrap; }
.big-num small { font-size: 12.5px; font-weight: 500; color: var(--muted); margin-left: 6px; }
.usage { padding: 4px 18px 16px; display: flex; flex-direction: column; gap: 10px; }
.usage-row { display: grid; grid-template-columns: 160px 1fr auto; align-items: center; gap: 12px; font-size: 13px; }
.usage-row > span:first-child { overflow: hidden; text-overflow: ellipsis; }
.bar { height: 8px; border-radius: 99px; background: var(--hover); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, #6157ff, #2f7bff, #14c8ff); }
.export-parts .set-sub b { margin-bottom: 10px; }
.supp-list .set-empty .notice { margin: 0; }

@media (max-width: 900px) {
  .settings-layout { grid-template-columns: 1fr; }
  .tabs-v { position: static; flex-direction: row; overflow-x: auto; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
  .tab-v { white-space: nowrap; }
  .usage-row { grid-template-columns: 1fr; gap: 4px; }
}
@media (max-width: 760px) {
  .search-hints { grid-template-columns: 1fr; }
  .toasts { bottom: calc(88px + env(safe-area-inset-bottom)); }
  .msg-warn, .msg-ai { margin-left: 16px; margin-right: 16px; }
  .reader-toolbar { overflow-x: auto; padding: 9px 6px; gap: 0; }
  .reader-toolbar .icon-btn { width: 34px; flex: none; }
  .reader-toolbar [data-print], .reader-toolbar .tb-sep { display: none; }
  .ai-btn { padding: 0 8px; }
  .ai-btn span { display: none; }
  /* 操作较多的列表行：按钮换到第二行，文字占满宽度 */
  .id-row { padding: 12px 14px; }
  .id-row:has(> :nth-child(5)) { flex-wrap: wrap; row-gap: 6px; }
  .id-row:has(> :nth-child(5)) > .id-main { flex-basis: calc(100% - 46px); }
  .id-row:has(> :nth-child(5)) > .id-main + * { margin-left: 46px; }
  .page, .reader-scroll, .list-body { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
}
@media print {
  .ai-summary, .thread-banner, .resizer { display: none !important; }
}

/* 确认框里的勾选项、Resend 名额 */
.dialog-check { display: flex; align-items: flex-start; gap: 8px; margin-top: 14px; font-size: 13.5px; color: var(--text-2); cursor: pointer; }
.dialog-check input { margin-top: 3px; accent-color: var(--accent); }
.dialog-text span + span { margin-left: .25em; }
.resend-usage .usage-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.resend-usage .usage-head b { margin-bottom: 0; }
.resend-usage .id-list { border-top: 0; }

/* 触屏设备：输入框字号不小于 16px，否则 iOS Safari 聚焦输入框时会自动放大页面。
   不用 maximum-scale=1：它会让安卓上无法双指缩放，影响视力不好的用户 */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
@media (pointer: coarse) {
  input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]),
  select,
  textarea,
  [contenteditable="true"] { font-size: 16px !important; }
}

/* 写信：域名用文字下拉（悬停高亮），右侧只保留一个"常用地址"箭头 */
.from-domain { appearance: none; -webkit-appearance: none; background: none; border: 0; padding: 2px 6px; margin-right: 2px; border-radius: 6px; font: inherit; font-weight: 500; color: var(--text); cursor: pointer; }
.from-domain:hover, .from-domain:focus-visible { background: var(--hover); outline: none; }
.from-domain { field-sizing: content; } /* 支持的浏览器里下拉框宽度随所选域名收缩 */
.row.draft .row-top time { margin-left: auto; }

/* ---------- 登录页：产品预览 ---------- */
.hero-preview { position: relative; z-index: 1; flex: 1 1 auto; min-height: 220px; margin-top: 14px; }
.hero-preview::before { content: ""; position: absolute; left: 8%; top: 4%; width: 70%; height: 70%; background: radial-gradient(closest-side, rgba(120, 190, 255, .55), transparent); filter: blur(30px); pointer-events: none; }
.pv-window {
  --pv-bg: #fff; --pv-side: #f5f7fb; --pv-line: #e6e9ef; --pv-text: #1f2329; --pv-muted: #6b7280; --pv-faint: #9aa1ad;
  --pv-soft: #eef3fe; --pv-accent: #2563eb; --pv-sel: #edf2fe; --pv-chip: #f1f3f6; --pv-ok: #15803d;
  position: absolute; left: 0; top: 0; width: 740px; height: 480px; border-radius: 14px; overflow: hidden;
  background: var(--pv-bg); color: var(--pv-text); font-size: 11px; line-height: 1.45; letter-spacing: 0;
  box-shadow: 0 30px 80px rgba(2, 14, 48, .45), 0 0 0 1px rgba(255, 255, 255, .22);
  animation: pv-in .8s cubic-bezier(.2, .8, .2, 1) .15s both;
}
[data-theme="dark"] .pv-window {
  --pv-bg: #1b1e24; --pv-side: #15171c; --pv-line: #2a2e36; --pv-text: #e6e8ec; --pv-muted: #9aa1ad; --pv-faint: #6b7280;
  --pv-soft: #1d2b44; --pv-accent: #5aa2ff; --pv-sel: #1f2a3c; --pv-chip: #262a32; --pv-ok: #4ade80;
}
@keyframes pv-in { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
.pv-bar { height: 30px; display: flex; align-items: center; gap: 6px; padding: 0 12px; background: var(--pv-side); border-bottom: 1px solid var(--pv-line); }
.pv-bar > i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.pv-bar > i:nth-child(2) { background: #febc2e; }
.pv-bar > i:nth-child(3) { background: #28c840; }
.pv-url { margin-left: 14px; width: 240px; height: 18px; border-radius: 6px; background: var(--pv-bg); border: 1px solid var(--pv-line); color: var(--pv-muted); font-size: 10px; display: flex; align-items: center; justify-content: center; }
.pv-body { display: grid; grid-template-columns: 128px 262px minmax(0, 1fr); height: calc(100% - 30px); }
.pv-side { background: var(--pv-side); border-right: 1px solid var(--pv-line); padding: 10px 8px; display: flex; flex-direction: column; gap: 1px; }
.pv-compose { background: var(--pv-accent); color: #fff; border-radius: 8px; padding: 7px 10px; font-weight: 600; margin-bottom: 7px; }
.pv-nav { display: flex; justify-content: space-between; padding: 5px 8px; border-radius: 6px; }
.pv-nav.on { background: var(--pv-soft); color: var(--pv-accent); font-weight: 600; }
.pv-nav b { font-size: 10px; }
.pv-group { margin: 10px 8px 4px; font-size: 9.5px; font-weight: 700; color: var(--pv-faint); }
.pv-dom { display: flex; align-items: center; gap: 6px; padding: 4px 8px; }
.pv-dom i, .pv-chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--c); flex: none; }
.pv-addr { padding: 2px 8px 2px 20px; color: var(--pv-muted); font-size: 10.5px; }
.pv-list { border-right: 1px solid var(--pv-line); padding: 6px 5px; overflow: hidden; }
.pv-row { position: relative; display: flex; gap: 8px; padding: 8px 8px 8px 12px; border-radius: 8px; }
.pv-row.on { background: var(--pv-sel); }
.pv-row.unread::before { content: ""; position: absolute; left: 3px; top: 17px; width: 5px; height: 5px; border-radius: 50%; background: var(--pv-accent); }
.pv-av { width: 24px; height: 24px; border-radius: 50%; flex: none; display: grid; place-items: center; font-size: 9.5px; font-weight: 700; background: color-mix(in srgb, var(--c) 16%, var(--pv-bg)); color: color-mix(in srgb, var(--c) 72%, #000); }
[data-theme="dark"] .pv-av { background: color-mix(in srgb, var(--c) 28%, var(--pv-bg)); color: color-mix(in srgb, var(--c) 55%, #fff); }
.pv-main { flex: 1; min-width: 0; display: grid; gap: 1px; }
.pv-top { display: flex; justify-content: space-between; gap: 6px; }
.pv-top b, .pv-subj, .pv-snip { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pv-top b { font-weight: 500; }
.pv-top time { color: var(--pv-muted); font-size: 9.5px; white-space: nowrap; }
.pv-row.unread .pv-top b, .pv-row.unread .pv-subj { font-weight: 700; }
.pv-row.unread .pv-top time { color: var(--pv-accent); font-weight: 600; }
.pv-bot { display: flex; align-items: center; gap: 6px; min-width: 0; }
.pv-snip { flex: 1 1 0; min-width: 0; color: var(--pv-muted); font-size: 10px; }
.pv-chip { flex: none; display: inline-flex; align-items: center; gap: 4px; padding: 1px 6px; border-radius: 5px; background: var(--pv-chip); color: var(--pv-muted); font-size: 9.5px; }
.pv-reader { padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.pv-h { font-size: 15px; font-weight: 700; letter-spacing: -.01em; }
.pv-card { border: 1px solid var(--pv-line); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.pv-sender { display: flex; align-items: center; gap: 8px; }
.pv-sender div { display: grid; }
.pv-sender span { color: var(--pv-muted); font-size: 10px; }
.pv-shield { align-self: flex-start; display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 99px; background: color-mix(in srgb, var(--pv-ok) 14%, var(--pv-bg)); color: var(--pv-ok); font-size: 9.5px; }
.pv-shield .i { width: 11px; height: 11px; }
.pv-line { display: block; height: 7px; border-radius: 4px; background: var(--pv-chip); }
.pv-replybar { display: flex; align-items: center; gap: 10px; }
.pv-btn { display: inline-flex; align-items: center; gap: 4px; padding: 5px 10px; border: 1px solid var(--pv-line); border-radius: 7px; font-weight: 500; }
.pv-btn .i { width: 12px; height: 12px; }
.pv-from { color: var(--pv-muted); font-size: 10px; }
@media (max-width: 760px) { .hero-preview { display: none; } }
@media (prefers-reduced-motion: reduce) { .pv-window { animation: none; } }
[data-theme="dark"] .pv-compose { background: #2563eb; }
.pv-ai { display: grid; gap: 3px; padding: 9px 11px; border-radius: 10px; font-size: 10.5px; color: var(--pv-text);
  background: linear-gradient(135deg, color-mix(in srgb, #7c3aed 9%, var(--pv-bg)), color-mix(in srgb, #2f7bff 9%, var(--pv-bg)));
  border: 1px solid color-mix(in srgb, #7c3aed 20%, var(--pv-line)); }
.pv-ai b { display: inline-flex; align-items: center; gap: 4px; color: #6d28d9; font-size: 10px; }
.pv-ai .i { width: 11px; height: 11px; }
[data-theme="dark"] .pv-ai b { color: #c4b5fd; }
.pv-collapsed { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid var(--pv-line); border-radius: 10px; min-width: 0; }
.pv-collapsed b { font-weight: 600; flex: none; }
.pv-collapsed span:not(.pv-av) { flex: 1; min-width: 0; color: var(--pv-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pv-collapsed time { color: var(--pv-muted); font-size: 9.5px; flex: none; }

/* ---------- v4 精修：层次、留白、克制的颜色 ---------- */
[data-theme="dark"] .workspace { box-shadow: 0 0 0 1px rgba(255, 255, 255, .05), 0 16px 40px -16px rgba(0, 0, 0, .6); }
[data-theme="dark"] .search input { border-color: var(--line); }
/* 中文标题不收紧字距（收紧会显得挤） */
html[lang="zh-CN"] :is(h1, h2, h3, .thread-subject, .list-title, .page-head h1) { letter-spacing: 0; }

/* 品牌渐变：只用在"写邮件"和登录这类关键操作上 */
:root { --brand-grad: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%); --brand-grad-hover: linear-gradient(135deg, #1d4ed8 0%, #4338ca 100%); }
[data-theme="dark"] { --brand-grad: linear-gradient(135deg, #2f63e8 0%, #5146e0 100%); --brand-grad-hover: linear-gradient(135deg, #3a6ff0 0%, #5b50ea 100%); }
.compose-btn, .fab, .auth-card .btn.primary { background: var(--brand-grad); border-color: transparent; box-shadow: 0 8px 20px -8px rgba(37, 99, 235, .6), inset 0 1px 0 rgba(255, 255, 255, .14); }
.compose-btn:hover, .fab:hover, .auth-card .btn.primary:hover { background: var(--brand-grad-hover); border-color: transparent; }

/* 侧栏：更轻的分组标题、选中项左侧细条 */
.nav-item { position: relative; }
.nav-item.active { background: color-mix(in srgb, var(--accent) 8%, transparent); }
.nav-item.active::before { content: ""; position: absolute; left: -10px; top: 9px; bottom: 9px; width: 3px; border-radius: 0 3px 3px 0; background: var(--accent); }
.nav-item.sub.active::before, .nav-item.domain.active::before { top: 7px; bottom: 7px; }
.sb-section { margin-top: 22px; }
.sb-title { font-size: 11px; font-weight: 600; letter-spacing: .05em; padding-bottom: 8px; }
.sb-bottom { border-top-color: transparent; }

/* ---------- 阅读区：居中的阅读栏、去掉卡片边框 ---------- */
.reader-scroll { padding: 26px 32px 56px; }
.thread-head, .thread-msgs, .thread-banner, .ai-summary, .reply-zone { max-width: 760px; margin-left: auto; margin-right: auto; }
.thread-head { margin-bottom: 8px; }
.thread-subject { font-size: 22px; margin-bottom: 12px; }
.thread-msgs { gap: 0; }
.msg { background: transparent; border: 0; border-radius: 0; box-shadow: none; overflow: visible; }
.msg + .msg { border-top: 1px solid var(--line); }
.msg.collapsed:hover { background: var(--panel-2); border-color: var(--line); }
.msg-head { padding: 16px 4px; }
.msg.collapsed .msg-head { padding: 12px 4px; }
.msg-body { padding: 0 4px 22px 56px; }
.msg-details { margin: -6px 4px 14px 56px; }
.msg-atts { margin: 0 4px 22px 56px; }
.msg-warn, .msg-ai { margin-left: 56px; margin-right: 4px; }
.msg.is-bounce .msg-head { box-shadow: inset 3px 0 0 color-mix(in srgb, var(--err) 55%, transparent); }
.msg-name { font-weight: 600; }
.thread-banner { border-color: transparent; background: var(--panel-2); }
[data-theme="dark"] .html-frame { padding: 14px 16px; border-radius: 12px; }

/* 工具栏更轻 */
.reader-toolbar { gap: 4px; padding: 8px 14px; min-height: 52px; }

/* 内嵌回复框 */
.reply-zone { margin-top: 18px; }
.reply-box { display: flex; align-items: center; gap: 6px; padding: 5px 6px 5px 6px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); transition: border-color .15s, box-shadow .15s; }
.reply-box:hover { border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.reply-prompt { flex: 1; min-width: 0; display: flex; align-items: center; gap: 10px; height: 40px; padding: 0 12px; border: 0; background: none; color: var(--muted); font-size: 14px; text-align: left; cursor: text; border-radius: 10px; }
.reply-prompt span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.reply-prompt .i { width: 17px; height: 17px; color: var(--faint); }
.reply-prompt:hover { color: var(--text-2); }
.reply-alt { display: flex; gap: 2px; flex: none; }
.reply-zone .reply-hint { display: block; margin: 8px 6px 0; font-size: 12px; color: var(--faint); }
.reply-zone:has(.composer.inline) :is(.reply-box, .reply-hint) { display: none; }

.composer.inline {
  position: relative; right: auto; bottom: auto; z-index: auto;
  width: 100%; height: auto; min-height: 320px;
  border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
  transform: none; opacity: 1; transition: none;
}
.composer.inline .composer-head { height: 44px; border-radius: 14px 14px 0 0; }
.composer.inline :is([data-act="min"], [data-act="max"]) { display: none; }
.composer:not(.inline) [data-act="popout"] { display: none; }
/* 内嵌时：发送栏固定在框的底部；正文区有最大高度，内容多了在框内滚动；引用原文默认折叠 */
.composer.inline .composer-body { overflow: visible; }
.composer.inline .editor-slot { min-height: 0; flex: none; }
.composer.inline .editor-area { min-height: 140px; max-height: min(38vh, 420px); overflow-y: auto; }
.composer.inline:not(.show-quote) .editor-area .cfm-quote { display: none; }
.composer.inline .composer-foot { border-radius: 0 0 14px 14px; }
.inline-quote-toggle { display: none; }
.composer.inline.has-quote .inline-quote-toggle { display: inline-grid; place-items: center; align-self: flex-start; margin: 0 0 12px 16px; width: 34px; height: 20px; border: 0; border-radius: 6px; background: var(--hover); color: var(--muted); cursor: pointer; }
.composer.inline.has-quote .inline-quote-toggle:hover { background: var(--active); color: var(--text); }
.composer.inline.show-quote .inline-quote-toggle { background: var(--accent-soft); color: var(--accent-text); }
.inline-quote-toggle .i { width: 16px; height: 16px; }

@media (max-width: 760px) {
  .reader-scroll { padding: 16px 12px 96px; }
  .msg-head { padding: 14px 2px; }
  .msg-body, .msg-atts { padding-left: 2px; padding-right: 2px; margin-left: 0; margin-right: 0; }
  .msg-details, .msg-warn, .msg-ai { margin-left: 2px; margin-right: 2px; }
  .reply-alt .btn span { display: none; }
}

/* ---------- 微动效 ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.reader-scroll.enter { animation: rise .28s var(--ease) both; }
.page-host > * { animation: rise .26s var(--ease) both; }
.empty .zero-art, .reader-empty .zero-art { animation: rise .45s var(--ease) both; }
.btn:active:not(:disabled) { transform: scale(.98); }
.icon-btn { transition: background .12s, color .12s, transform .08s; }
.icon-btn:active { transform: scale(.92); }
.row { transition: background .12s, box-shadow .12s; }
.reader-empty .zero-art { width: 168px; }
.empty h3, .reader-empty h3 { font-weight: 600; }

/* ---------- 手机：底部标签栏、阅读页从右侧滑入 ---------- */
@media (max-width: 760px) {
  .tabbar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 55;
    grid-template-columns: repeat(4, 1fr);
    height: calc(58px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom);
    background: color-mix(in srgb, var(--panel) 86%, transparent); backdrop-filter: saturate(1.5) blur(16px); -webkit-backdrop-filter: saturate(1.5) blur(16px);
    border-top: 1px solid var(--line);
  }
  .tab { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; border: 0; background: none; padding: 0; font-size: 11px; font-weight: 500; color: var(--muted); text-decoration: none !important; cursor: pointer; }
  .tab .i { width: 22px; height: 22px; }
  .tab.on { color: var(--accent-text); }
  .tab.on .i { stroke-width: 2.2; }
  .tab-badge { position: absolute; top: 5px; left: calc(50% + 7px); min-width: 17px; height: 17px; padding: 0 5px; border-radius: 99px; background: var(--accent-btn); color: #fff; font-size: 10.5px; font-weight: 600; line-height: 17px; text-align: center; }
  .fab { bottom: calc(58px + 16px + env(safe-area-inset-bottom)); }
  .toasts { bottom: calc(58px + 90px + env(safe-area-inset-bottom)); }
  .list-body, .page { padding-bottom: calc(150px + env(safe-area-inset-bottom)); }
  /* 打开邮件时隐藏标签栏和写信按钮，专心阅读 */
  .app:has(.workspace.reading) :is(.tabbar, .fab) { display: none !important; }
  .app:has(.workspace.reading) .toasts { bottom: calc(24px + env(safe-area-inset-bottom)); }
}
@keyframes slide-in { from { opacity: 0; transform: translateX(28px); } to { opacity: 1; transform: none; } }
@media (max-width: 1080px) {
  .workspace.reading .reader-pane { animation: slide-in .26s var(--ease) both; }
}

/* 卡片：描边阴影代替实线边框 */
:root { --card-ring: 0 0 0 1px rgba(15, 23, 42, .055), 0 2px 10px -4px rgba(15, 23, 42, .07); }
[data-theme="dark"] { --card-ring: 0 0 0 1px rgba(255, 255, 255, .06), 0 2px 12px -4px rgba(0, 0, 0, .5); }
.set-card, .domain-card, .att-card, .addr-table { border-color: transparent; box-shadow: var(--card-ring); }
.domain-card:hover, .att-card:hover { border-color: transparent; box-shadow: 0 0 0 1px rgba(15, 23, 42, .07), 0 10px 24px -10px rgba(15, 23, 42, .16); }
[data-theme="dark"] :is(.domain-card, .att-card):hover { box-shadow: 0 0 0 1px rgba(255, 255, 255, .1), 0 10px 24px -10px rgba(0, 0, 0, .6); }
.att-card { border-radius: 12px; }
.att-preview { height: 112px; }
.dc-rows { background: var(--panel-2); }
.bar.warn i { background: linear-gradient(90deg, #f59e0b, #ef4444); }

/* ---------- 首次设置（API 令牌 + 密码）与管理员登录 ---------- */
.setup-steps li .input { align-self: stretch; max-width: 460px; }
.setup-steps li .input + .input { margin-top: 2px; }
.perm-list { font-size: 13px; color: var(--muted); align-self: stretch; }
.perm-list summary { cursor: pointer; width: fit-content; }
.perm-list summary:hover { color: var(--text-2); }
.perm-list .scope-list { margin-top: 8px; }
.setup-form > .btn { margin-top: 2px; }
.setup-advanced { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); }
.setup-advanced > summary { cursor: pointer; font-weight: 600; font-size: 14px; color: var(--text-2); width: fit-content; }
.setup-advanced[open] > summary { margin-bottom: 10px; }
.admin-login { display: grid; gap: 10px; }
.auth-card :is(.admin-login, .btn.block) + :is(.btn.block, .admin-login) { margin-top: 10px; }
.pw-form, .token-form { display: grid; gap: 8px; }
.pw-form > *, .token-form > * { max-width: 460px; }
.token-form .form-inline { margin-top: 2px; padding: 0; max-width: none; }
.auth-card .forgot { margin: 8px 0 0; }
.reset-form .btn.sm { margin-top: 10px; }
.att-card.missing { opacity: .75; }
.att-card.missing .att-size { color: var(--err); }
/* 导入邮件、系统状态 */
.import-card .form-inline.wrap { flex-wrap: wrap; align-items: center; padding: 0; }
.import-card input[type=file] { max-width: 320px; padding: 6px 8px; }
.check-inline { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-2, inherit); }
.import-progress { margin-top: 10px; min-height: 18px; }
.import-progress .spin { vertical-align: -2px; }
.err-text { color: var(--err); }