:root {
  --paper: #f6f2ea; --panel: #fffdf8; --panel-2: #f1ece2; --line: #e3dccd; --ink: #2b2925; --ink-2: #6b665c; --ink-3: #9a9385;
  --accent: #3f6b63; --accent-soft: #e2ece8; --cinnabar: #b5543c; --cinnabar-soft: #f6e4dd; --gold: #a67c2e; --gold-soft: #f4ead3;
  --mine: #e8efe9; --xiaoyue: #f3ecf6; --xiaoyue-ink: #6c4a7d; --ok: #3d7a4f; --shadow: 0 1px 2px rgba(60,50,30,.06), 0 4px 16px rgba(60,50,30,.06);
  --radius: 12px; color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1b1a18; --panel: #232220; --panel-2: #2b2a27; --line: #393631; --ink: #ebe6dc; --ink-2: #b5ae9f; --ink-3: #847d70;
    --accent: #8fbcb1; --accent-soft: #2a3a36; --cinnabar: #e08a72; --cinnabar-soft: #3d2a24; --gold: #d4ad62; --gold-soft: #3a3121;
    --mine: #263129; --xiaoyue: #2f2734; --xiaoyue-ink: #d2b4e0; --ok: #7fc293; --shadow: 0 1px 2px rgba(0,0,0,.3); color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; overflow: hidden; }
#app { height: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
body { background: var(--paper); color: var(--ink); font: 14px/1.6 "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 4px 10px; }
button:hover { border-color: var(--ink-3); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--cinnabar); }
button.link { border: 0; background: none; padding: 0 4px; color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }
input, select, textarea { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
.boot { display: grid; place-items: center; height: 100%; color: var(--ink-3); }
.muted { color: var(--ink-3); font-size: 12px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); margin-right: 4px; vertical-align: 1px; }
.dot.on { background: var(--ok); }
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px; background: var(--panel-2); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.chip.warn { background: var(--gold-soft); color: var(--gold); }
.chip.bad { background: var(--cinnabar-soft); color: var(--cinnabar); }
.chip.good { background: var(--accent-soft); color: var(--accent); }

/* login */
.login { display: grid; place-items: center; height: 100%; overflow: auto; padding: 16px; }
.login form { width: min(360px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); display: grid; gap: 12px; }
.login h1 { margin: 0; font-size: 22px; letter-spacing: 2px; }
.login .err { color: var(--cinnabar); min-height: 1.2em; font-size: 13px; }

/* shell */
.shell { display: grid; grid-template-columns: 240px minmax(0, 1fr) 340px; height: 100vh; height: 100dvh; }
.side { border-right: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; background: var(--panel-2); }
.brand { padding: 16px 12px 8px 16px; font-size: 17px; letter-spacing: 1px; display: flex; justify-content: space-between; align-items: center; gap: 6px; white-space: nowrap; }
.brand-title { overflow: hidden; text-overflow: ellipsis; }
.brand .link { font-size: 13px; letter-spacing: 0; }
.brand small { font-size: 12px; letter-spacing: 0; color: var(--ink-3); }
.rooms { flex: 1; overflow: auto; padding: 4px 8px; }
.room-item { display: block; width: 100%; text-align: left; border: 0; background: none; padding: 8px 10px; border-radius: 10px; margin-bottom: 2px; }
.room-item:hover { background: var(--panel); }
.room-item.active { background: var(--panel); box-shadow: var(--shadow); }
.room-item .name { display: flex; justify-content: space-between; gap: 6px; font-weight: 600; }
.room-item .badge { background: var(--cinnabar); color: #fff; border-radius: 999px; font-size: 11px; padding: 0 6px; font-weight: 400; }
.room-item .badge.at { background: var(--cinnabar); }
.side-foot { padding: 10px 12px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 6px; flex-wrap: wrap; }

.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.room-head { padding: 12px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; background: var(--panel); }
.room-head h2 { margin: 0; font-size: 17px; }
.room-head .spacer { flex: 1; }
.timeline { flex: 1; overflow: auto; padding: 16px 18px 8px; }
.empty { color: var(--ink-3); text-align: center; margin-top: 18vh; }

.msg { display: flex; gap: 10px; margin: 0 0 12px; }
.msg .avatar { flex: none; width: 32px; height: 32px; border-radius: 50%; background: var(--panel-2); display: grid; place-items: center; font-size: 13px; color: var(--ink-2); border: 1px solid var(--line); }
.msg.xiaoyue .avatar { background: var(--xiaoyue); color: var(--xiaoyue-ink); border-color: transparent; }
.msg .body { min-width: 0; max-width: min(680px, 100%); }
.msg .who { font-size: 12px; color: var(--ink-3); display: flex; gap: 8px; align-items: baseline; }
.msg .who b { color: var(--ink-2); font-weight: 600; }
.bubble { background: var(--panel); border: 1px solid var(--line); border-radius: 4px 12px 12px 12px; padding: 7px 12px; white-space: pre-wrap; word-break: break-word; }
.msg.mine .bubble { background: var(--mine); }
.msg.xiaoyue .bubble { background: var(--xiaoyue); border-color: transparent; }
.msg.withdrawn .bubble { color: var(--ink-3); font-style: italic; }
.mention { color: var(--accent); font-weight: 600; }
.mention.me { background: var(--accent-soft); border-radius: 4px; padding: 0 2px; }
.quote { font-size: 12px; color: var(--ink-3); border-left: 2px solid var(--line); padding-left: 8px; margin: 2px 0 4px; max-width: 520px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.actions { visibility: hidden; display: inline-flex; gap: 2px; }
.msg:hover .actions { visibility: visible; }
.sys { text-align: center; color: var(--ink-3); font-size: 12px; margin: 6px 0 12px; }

.work { margin: -4px 0 14px 42px; max-width: 640px; border: 1px solid var(--line); border-left: 3px solid var(--accent); background: var(--panel); border-radius: 10px; padding: 8px 12px; font-size: 13px; box-shadow: var(--shadow); }
.work.s-running { border-left-color: var(--gold); }
.work.s-awaiting_confirmation, .work.s-needs_information { border-left-color: var(--cinnabar); }
.work.s-completed { border-left-color: var(--ok); }
.work.s-cancelled, .work.s-failed { border-left-color: var(--ink-3); opacity: .85; }
.work .top { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.work .brief { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-2); }
.work .meta { color: var(--ink-3); margin-top: 4px; display: flex; flex-wrap: wrap; gap: 4px 12px; }
.work .row { margin-top: 6px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.work .proposal { background: var(--cinnabar-soft); border-radius: 8px; padding: 6px 8px; margin-top: 6px; }

.composer { border-top: 1px solid var(--line); padding: 10px 18px 14px; background: var(--panel); }
.reply-bar { font-size: 12px; color: var(--ink-2); display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.composer .box { display: flex; gap: 8px; align-items: flex-end; }
.composer textarea { flex: 1; resize: none; min-height: 40px; max-height: 160px; }
.composer .hint { font-size: 12px; color: var(--ink-3); margin-top: 6px; }

.aside { border-left: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; background: var(--panel); }
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tabs button { flex: 1; border: 0; border-radius: 0; background: none; padding: 10px 0; color: var(--ink-3); border-bottom: 2px solid transparent; }
.tabs button.on { color: var(--ink); border-bottom-color: var(--accent); }
.pane { flex: 1; overflow: auto; padding: 12px 14px; }
.card { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; margin-bottom: 10px; background: var(--panel); }
.card h4 { margin: 0 0 4px; font-size: 14px; display: flex; gap: 6px; align-items: center; }
.versions { margin: 6px 0 0; padding: 0; list-style: none; font-size: 12px; }
.versions li { display: flex; gap: 6px; align-items: center; padding: 3px 0; border-top: 1px dashed var(--line); flex-wrap: wrap; }
.versions li .grow { flex: 1; color: var(--ink-2); }
.section-title { font-size: 12px; color: var(--ink-3); margin: 14px 0 6px; letter-spacing: 1px; }
.form-row { display: flex; gap: 6px; margin: 6px 0; align-items: center; flex-wrap: wrap; }
.form-row label { font-size: 12px; color: var(--ink-2); min-width: 64px; }
.bar { height: 6px; border-radius: 3px; background: var(--panel-2); overflow: hidden; margin: 6px 0; }
.bar > i { display: block; height: 100%; background: var(--accent); }
.bar > i.hot { background: var(--cinnabar); }

.modal { position: fixed; inset: 0; background: rgba(30,25,15,.35); display: grid; place-items: center; z-index: 10; padding: 16px; }
.modal > div { background: var(--panel); border-radius: 14px; padding: 18px; width: min(560px, 100%); max-height: 86vh; overflow: auto; box-shadow: var(--shadow); }
.modal h3 { margin: 0 0 10px; }
.modal pre { white-space: pre-wrap; word-break: break-word; background: var(--panel-2); padding: 10px; border-radius: 8px; max-height: 60vh; overflow: auto; font: 13px/1.6 inherit; }
.code { font: 600 20px/1.4 ui-monospace, Consolas, monospace; letter-spacing: 2px; background: var(--gold-soft); color: var(--gold); padding: 6px 10px; border-radius: 8px; display: inline-block; }
table.users { width: 100%; border-collapse: collapse; font-size: 13px; }
table.users td { padding: 4px 6px; border-top: 1px solid var(--line); }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 10px; z-index: 20; max-width: 90vw; }
.mobile-toggle { display: none; }

@media (max-width: 1100px) {
  .shell { grid-template-columns: 210px minmax(0, 1fr) 290px; }
}
@media (max-width: 820px) {
  .shell { grid-template-columns: 200px minmax(0, 1fr); }
  .aside { position: fixed; right: 0; top: 0; bottom: 0; width: min(360px, 92vw); z-index: 5; box-shadow: var(--shadow); display: none; }
  .aside.open { display: flex; }
  .mobile-toggle { display: inline-block; }
}
@media (max-width: 640px) {
  .shell { grid-template-columns: 1fr; }
  .side { display: none; }
  .side.open { display: flex; position: fixed; inset: 0 25% 0 0; z-index: 6; }
  .timeline, .composer, .room-head { padding-left: 12px; padding-right: 12px; }
  .work { margin-left: 0; }
}

/* ---- 知画传入的材质：玻璃黑 → 深色 ---- */
:root[data-theme="dark"] {
  --paper: #1b1a18; --panel: #232220; --panel-2: #2b2a27; --line: #393631; --ink: #ebe6dc; --ink-2: #b5ae9f; --ink-3: #847d70;
  --accent: #8fbcb1; --accent-soft: #2a3a36; --cinnabar: #e08a72; --cinnabar-soft: #3d2a24; --gold: #d4ad62; --gold-soft: #3a3121;
  --mine: #263129; --xiaoyue: #2f2734; --xiaoyue-ink: #d2b4e0; --ok: #7fc293; --shadow: 0 1px 2px rgba(0,0,0,.3); color-scheme: dark;
}

/* ---- 左栏：消息 / 通讯录 ---- */
.brand-actions { display: inline-flex; align-items: center; gap: 6px; }
.bell { position: relative; border: 0; background: none; padding: 2px 4px; font-size: 15px; }
.bell .count, .side-tabs .count { display: inline-block; min-width: 16px; padding: 0 4px; border-radius: 999px; background: var(--cinnabar); color: #fff; font-size: 11px; line-height: 16px; text-align: center; margin-left: 3px; }
.bell .count { position: absolute; top: -4px; right: -8px; }
.side-tabs { display: flex; gap: 4px; padding: 0 12px 6px; }
.side-tabs button { flex: 1; border: 0; background: none; border-radius: 8px; padding: 5px 0; color: var(--ink-3); }
.side-tabs button.on { background: var(--panel); color: var(--ink); box-shadow: var(--shadow); }
.side-search { margin: 0 12px 6px; width: calc(100% - 24px); }
.pad { padding: 12px; }
.room-item { display: flex; gap: 10px; align-items: center; }
.room-avatar { flex: none; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 13px; background: var(--accent-soft); color: var(--accent); }
.room-avatar.direct { border-radius: 50%; background: var(--panel); color: var(--ink-2); border: 1px solid var(--line); }
.room-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.room-item .name, .person .name { display: flex; justify-content: space-between; align-items: center; gap: 6px; font-weight: 600; }
.room-body .title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.room-body .time { flex: none; font-weight: 400; font-size: 11px; color: var(--ink-3); }
.room-body .preview { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--ink-3); }
.room-body .preview .text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.badge { flex: none; background: var(--ink-3); color: #fff; border-radius: 999px; font-size: 11px; padding: 0 6px; font-weight: 400; }
.badge.at { background: var(--cinnabar); }
.badge.quiet { background: var(--line); color: var(--ink-2); }
.quiet-icon { font-size: 11px; opacity: .7; }
.dept { font-size: 12px; color: var(--ink-3); padding: 10px 10px 4px; letter-spacing: 1px; }
.person { display: flex; align-items: center; gap: 10px; padding: 6px 10px; border-radius: 10px; }
.person:hover { background: var(--panel); }
.person-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; visibility: hidden; }
.person:hover .person-actions, .person:focus-within .person-actions { visibility: visible; }
.side { position: relative; }
.bell-panel { position: absolute; z-index: 8; top: 48px; left: 8px; right: 8px; max-height: 70vh; overflow: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.18); padding: 6px; }
.bell-head { display: flex; justify-content: space-between; align-items: center; padding: 6px 8px; }
.note-item { display: grid; grid-template-columns: auto 1fr; gap: 2px 8px; width: 100%; text-align: left; border: 0; background: none; padding: 8px; border-radius: 8px; }
.note-item:hover { background: var(--panel-2); }
.note-item .kind { grid-row: span 2; align-self: start; font-size: 11px; padding: 1px 6px; border-radius: 6px; background: var(--cinnabar-soft); color: var(--cinnabar); }
.note-item .text { font-size: 13px; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.note-item .muted { grid-column: 2; }
.note-item.read { opacity: .55; }
.note-item.read .kind { background: var(--panel-2); color: var(--ink-3); }

/* ---- 从通讯录选人 ---- */
.picker { border: 1px solid var(--line); border-radius: 10px; padding: 8px; margin: 6px 0; }
.picker-search { width: 100%; }
.picker-chips { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; margin: 6px 0; min-height: 22px; }
.picker-chips .chip button { padding: 0 0 0 4px; }
.picker-list { max-height: 260px; overflow: auto; }
.picker-row { display: flex; align-items: center; gap: 8px; padding: 5px 4px; border-radius: 6px; cursor: pointer; }
.picker-row:hover { background: var(--panel-2); }
.picker-name { min-width: 56px; }
details.more summary { cursor: pointer; color: var(--ink-2); font-size: 13px; margin: 6px 0; }

/* ---- v3：格式显示、往前翻、修改历史、搜索结果、提醒设置 ---- */
.md { white-space: normal; }
.md > :first-child { margin-top: 0; } .md > :last-child { margin-bottom: 0; }
.md p, .md ul, .md ol, .md pre, .md blockquote, .md table { margin: 6px 0; }
.md ul, .md ol { padding-left: 20px; }
.md code { background: var(--panel-2); padding: 0 4px; border-radius: 4px; font-size: 12px; }
.md pre { background: var(--panel-2); padding: 8px 10px; border-radius: 8px; overflow: auto; }
.md table { border-collapse: collapse; } .md th, .md td { border: 1px solid var(--line); padding: 3px 8px; }
.md blockquote { border-left: 3px solid var(--line); margin-left: 0; padding-left: 10px; color: var(--ink-2); }
.earlier { display: flex; justify-content: center; margin: 0 0 12px; }
.earlier button { border-radius: 999px; font-size: 12px; color: var(--ink-2); }
.link.edited { font-size: 11px; color: var(--ink-3); text-decoration: underline dotted; }
ol.history { padding-left: 20px; display: grid; gap: 10px; } ol.history p { margin: 2px 0 0; white-space: pre-wrap; } ol.history li.current p { font-weight: 600; }
.search-results { padding: 0 8px; overflow: auto; max-height: 45%; }
.search-results:empty { display: none; }
.hit { display: grid; gap: 2px; width: 100%; text-align: left; border: 0; background: none; padding: 6px 8px; border-radius: 8px; }
.hit:hover { background: var(--panel); }
.hit .name { display: flex; justify-content: space-between; gap: 6px; font-weight: 600; }
.hit .hit-text { font-size: 12px; color: var(--ink-2); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.hit mark { background: var(--gold-soft); color: inherit; border-radius: 3px; }
.kinds { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 4px 12px; font-size: 13px; margin-top: 6px; }

/* ---- 跳到某条消息 ---- */
.msg.flash .bubble { outline: 2px solid var(--gold); outline-offset: 2px; transition: outline-color .4s; }

/* 材料版本：信息一行、操作一行，窄栏里不再挤成竖条 */
.versions li .grow { flex-basis: 100%; }