:root {
  color-scheme: light;
  --primary: #fa5b0f;
  --primary-hover: #e65007;
  --primary-soft: #fff5ee;
  --primary-border: #ffd1b8;
  --sidebar: #304156;
  --sidebar-deep: #263445;
  --ink: #303133;
  --muted: #7a8492;
  --line: #e6e9ed;
  --surface: #ffffff;
  --page: #f4f6f8;
}

* {
  box-sizing: border-box;
}

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

body {
  overflow: hidden;
  background: var(--page);
  color: var(--ink);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-text-size-adjust: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button,
a,
input,
textarea,
select {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid #a23d0b;
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  vertical-align: middle;
}

button,
a {
  touch-action: manipulation;
}

.oa-shell {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-width: 0;
  overflow: hidden;
}

.oa-sidebar {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  overflow: auto;
  background: var(--sidebar);
  color: #bfcbd9;
  box-shadow: 2px 0 6px #00152922;
  z-index: 2;
}

.brand {
  display: flex;
  height: 50px;
  min-height: 50px;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  overflow: hidden;
  background: #2b2f3a;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
}

.brand svg,
.brand img {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  object-fit: contain;
}

.side-nav {
  display: grid;
  align-content: start;
  padding: 10px 0;
}

.nav-item {
  display: flex;
  width: 100%;
  min-height: 48px;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  text-decoration: none;
  font-size: 14px;
}

.nav-item:hover,
.nav-item.active {
  background: var(--sidebar-deep);
}

.nav-item.active {
  color: #ff935b;
}

.sub-nav {
  padding-left: 50px;
  background: #28394b;
  color: #bfcbd9;
}

.sub-nav.active {
  color: #ff935b;
}

.sidebar-bottom {
  margin-top: auto;
  padding: 16px 18px;
  border-top: 1px solid #ffffff14;
  color: #bfcbd9;
  font-size: 12px;
  overflow-wrap: anywhere;
}

.oa-workspace {
  display: grid;
  grid-template-rows: 50px 34px minmax(0, 1fr);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.oa-navbar {
  display: flex;
  min-width: 0;
  height: 50px;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: var(--surface);
  box-shadow: 0 1px 4px #00152914;
  z-index: 1;
}

.icon-button {
  display: inline-flex;
  width: 34px;
  min-width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: #606a78;
}

.icon-button:hover {
  background: #f1f3f6;
  color: var(--primary-hover);
}

.breadcrumb {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 9px;
  overflow: hidden;
  color: #89919c;
  white-space: nowrap;
  font-size: 13px;
}

.breadcrumb strong,
.breadcrumb b {
  overflow: hidden;
  color: #495060;
  font-weight: 500;
  text-overflow: ellipsis;
}

.nav-actions {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  white-space: nowrap;
  font-size: 13px;
}

.oa-tabs {
  display: flex;
  min-width: 0;
  height: 34px;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.tag-tab {
  display: inline-flex;
  height: 25px;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  border: 1px solid #d8dce5;
  border-radius: 3px;
  background: #ffffff;
  color: #495060;
  white-space: nowrap;
  font-size: 12px;
  text-decoration: none;
}

.tag-tab.active {
  border-color: var(--primary-border);
  background: var(--primary-soft);
  color: #bd4307;
}

.app-container {
  min-width: 0;
  min-height: 0;
  padding: 20px;
  overflow: auto;
}

.page-heading {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-heading h1 {
  margin: 0 0 4px;
  font-size: 21px;
  font-weight: 600;
  line-height: 1.4;
}

.page-heading p {
  margin: 0;
  color: #7b8593;
  font-size: 13px;
}

.heading-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.btn {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 13px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #ffffff;
  color: #606266;
  line-height: 1.4;
  text-decoration: none;
}

.btn:hover {
  border-color: var(--primary-border);
  background: var(--primary-soft);
  color: #bc4207;
}

.btn.primary,
.btn-primary {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
}

.btn.primary:hover,
.btn-primary:hover {
  border-color: var(--primary-hover);
  background: var(--primary-hover);
  color: #ffffff;
}

.chat-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 14px;
  height: calc(100vh - 190px);
  height: calc(100dvh - 190px);
  min-height: 560px;
  min-width: 0;
}

.chat-side,
.chat-main {
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
}

.chat-side {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.side-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 15px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 600;
}

.side-title h2,
.side-title h3 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.side-title small,
.side-title span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
}

.knowledge-list {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  gap: 8px;
  padding: 12px 10px;
  overflow: auto;
}

.knowledge-item {
  display: flex;
  min-width: 0;
  width: 100%;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
  text-align: left;
}

.knowledge-item:hover,
.knowledge-item.active {
  border-color: var(--primary-border);
  background: var(--primary-soft);
}

.knowledge-item.active {
  border-color: var(--primary);
}

.doc-mark {
  display: inline-grid;
  min-width: 30px;
  min-height: 32px;
  flex: 0 0 30px;
  place-items: center;
  border-radius: 3px;
  background: #f0f3f7;
  color: #687b91;
  font-size: 10px;
  font-weight: 600;
}

.doc-info {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.doc-info strong {
  overflow-wrap: anywhere;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
}

.doc-info small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.side-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.chat-main {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-head {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  padding: 12px 17px;
  border-bottom: 1px solid var(--line);
}

.ai-badge {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  place-items: center;
  border-radius: 4px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 17px;
}

.chat-title {
  min-width: 0;
}

.chat-title strong,
.chat-title h2 {
  display: block;
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.chat-title p,
.chat-title small {
  display: block;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.chat-tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.context-bar {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 8px 17px;
  border-bottom: 1px solid var(--line);
  background: #fcfcfd;
  color: #7b8593;
  font-size: 12px;
}

.context-bar select {
  max-width: 100%;
  min-width: 0;
  height: 29px;
  padding: 3px 24px 3px 8px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #ffffff;
  color: #606266;
}

.context-bar span {
  overflow-wrap: anywhere;
}

.chat-body {
  display: flex;
  min-height: 0;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 18px;
  padding: 22px;
  overflow: auto;
  overscroll-behavior: contain;
  background: #fafbfc;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: #d4d9df transparent;
}

.welcome {
  width: min(620px, 100%);
  align-self: center;
  margin: auto 0;
  padding: 20px 0;
  text-align: center;
}

.welcome-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin: 0 auto 14px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
}

.welcome-icon svg {
  width: 26px;
  height: 26px;
}

.welcome h2 {
  margin: 0 0 8px;
  font-size: 21px;
  font-weight: 600;
}

.welcome p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.question-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 25px;
}

.question-card {
  display: grid;
  min-width: 0;
  gap: 5px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
  text-align: left;
}

.question-card:hover {
  border-color: var(--primary-border);
  background: var(--primary-soft);
}

.question-card strong {
  font-size: 13px;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.question-card small {
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.msg-row {
  display: flex;
  width: fit-content;
  max-width: 86%;
  min-width: 0;
  align-items: flex-start;
  gap: 9px;
}

.msg-row.user {
  align-self: flex-end;
  flex-direction: row-reverse;
  max-width: 78%;
}

.msg-row.bot {
  align-self: flex-start;
}

.message-avatar {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  border-radius: 4px;
  background: var(--primary-soft);
  color: #bf460b;
  font-size: 12px;
  font-weight: 600;
}

.msg-row.user .message-avatar {
  background: #e8edf5;
  color: #526c8b;
}

.message-content {
  min-width: 0;
}

.sender {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
}

.user .sender {
  text-align: right;
}

.bubble {
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: 4px 10px 10px 10px;
  background: #ffffff;
  color: #3f4650;
  font-size: 14px;
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.user .bubble {
  border-color: var(--primary);
  border-radius: 10px 4px 10px 10px;
  background: var(--primary);
  color: #ffffff;
  white-space: pre-wrap;
}

.bubble p {
  margin: 0 0 9px;
}

.bubble p:last-child {
  margin-bottom: 0;
}

.bubble ol,
.bubble ul {
  margin: 8px 0;
  padding-left: 22px;
}

.bubble li + li {
  margin-top: 5px;
}

.citation-ref {
  display: inline-grid;
  min-width: 22px;
  min-height: 22px;
  place-items: center;
  margin: 0 3px;
  padding: 0 4px;
  border: 1px solid var(--primary-border);
  border-radius: 3px;
  background: var(--primary-soft);
  color: #b7430b;
  text-decoration: none;
  font-size: 11px;
  line-height: 1.4;
  vertical-align: baseline;
}

.citation-ref:hover {
  background: #ffe5d5;
}

.sources {
  display: grid;
  gap: 7px;
  margin-top: 10px;
}

.sources > p {
  margin: 0 0 1px;
  color: var(--muted);
  font-size: 12px;
}

.source-card {
  display: flex;
  min-width: 0;
  width: 100%;
  align-items: center;
  gap: 9px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
  text-align: left;
}

.source-card:hover {
  border-color: var(--primary-border);
  background: var(--primary-soft);
}

.source-number {
  display: grid;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  place-items: center;
  border-radius: 3px;
  background: var(--primary-soft);
  color: #b7430b;
  font-size: 12px;
  font-weight: 600;
}

.source-text {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.source-text strong {
  font-size: 12px;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.source-text small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.chat-foot {
  flex: 0 0 auto;
  margin: 0;
  padding: 12px 16px 10px;
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.input-box {
  display: flex;
  min-width: 0;
  align-items: flex-end;
  gap: 10px;
  padding: 10px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #ffffff;
}

.input-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px #fa5b0f10;
}

.input-box textarea {
  display: block;
  min-width: 0;
  width: 100%;
  min-height: 56px;
  max-height: 144px;
  flex: 1;
  resize: vertical;
  padding: 2px;
  border: 0;
  border-radius: 2px;
  background: transparent;
  line-height: 1.6;
}

.input-box textarea::placeholder {
  color: #a1a9b4;
}

.send,
#send {
  display: inline-flex;
  min-width: 40px;
  min-height: 36px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--primary);
  border-radius: 4px;
  background: var(--primary);
  color: #ffffff;
}

.send:hover,
#send:hover {
  background: var(--primary-hover);
}

.composer-hint {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 12px;
  margin: 7px 1px 0;
  color: #8b94a0;
  font-size: 11px;
}

.suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.chip {
  min-height: 29px;
  padding: 4px 11px;
  border: 1px solid #e1e5eb;
  border-radius: 15px;
  background: #ffffff;
  color: #687282;
  font-size: 12px;
}

.chip:hover {
  border-color: var(--primary-border);
  background: var(--primary-soft);
  color: #b7430b;
}

dialog {
  color: var(--ink);
  background: #ffffff;
}

dialog::backdrop {
  background: #18212e66;
}

.source-dialog {
  width: min(600px, 100%);
  max-width: none;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  margin: 0 0 0 auto;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-left: 1px solid var(--line);
  box-shadow: -8px 0 30px #14203020;
}

.source-dialog[open] {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

.dialog-head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--line);
}

.dialog-head > div {
  min-width: 0;
}

.dialog-head h2 {
  margin: 0 0 5px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.dialog-head p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.dialog-head form {
  flex: 0 0 auto;
  margin: 0;
}

.document-meta {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 7px 15px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: #fafbfc;
  color: #7b8593;
  font-size: 12px;
}

.document-body {
  min-width: 0;
  min-height: 0;
  padding: 24px;
  overflow: auto;
  overscroll-behavior: contain;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.document-body section,
.source-section {
  padding: 12px 0 18px;
  scroll-margin-top: 16px;
}

.document-body section + section,
.source-section + .source-section {
  border-top: 1px solid #f0f1f3;
}

.section-title {
  margin: 0 0 10px;
  color: #404854;
  font-size: 15px;
  font-weight: 600;
}

.document-body p {
  margin: 7px 0 12px;
}

.document-body ol,
.document-body ul {
  padding-left: 23px;
}

.source-section.active {
  margin: 0 -10px;
  padding-right: 10px;
  padding-left: 10px;
  border-left: 3px solid var(--primary);
  background: #fff9f4;
}

.source-section.active mark,
.document-body mark {
  padding: 1px 2px;
  border-radius: 2px;
  background: #ffe2ca;
  color: #62300c;
}

.library-dialog {
  width: min(900px, calc(100% - 40px));
  max-width: none;
  max-height: calc(100vh - 48px);
  max-height: calc(100dvh - 48px);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 15px 50px #14203026;
}

.library-dialog[open] {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

.library-search {
  padding: 15px 22px;
}

.library-search input {
  width: 100%;
  min-width: 0;
  min-height: 36px;
  padding: 8px 11px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #ffffff;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
  min-height: 0;
  align-content: start;
  gap: 12px;
  padding: 3px 22px 22px;
  overflow: auto;
  overscroll-behavior: contain;
}

.library-card {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 11px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
  text-align: left;
}

.library-card:hover {
  border-color: var(--primary-border);
  background: var(--primary-soft);
}

.library-card strong {
  display: block;
  font-size: 13px;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.library-card small,
.library-card p {
  display: block;
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  max-width: min(520px, calc(100% - 32px));
  padding: 10px 16px;
  transform: translateX(-50%);
  border: 1px solid #e8d6c7;
  border-radius: 4px;
  background: #fff8f1;
  color: #8f4c17;
  box-shadow: 0 6px 25px #14203019;
  z-index: 20;
  font-size: 13px;
  text-align: center;
  overflow-wrap: anywhere;
}

@media (max-width: 1100px) {
  .chat-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 12px;
  }

  .msg-row {
    max-width: 95%;
  }

  .chat-body {
    padding: 18px 16px;
  }
}

@media (max-width: 760px) {
  .oa-shell {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .brand {
    justify-content: center;
    gap: 0;
    padding: 0;
  }

  .brand > span,
  .brand > strong,
  .brand > b,
  .brand > div,
  .brand .brand-name,
  .nav-item > span,
  .nav-item > strong,
  .sidebar-bottom,
  .sub-nav {
    display: none;
  }

  .nav-item {
    justify-content: center;
    gap: 0;
    padding: 12px 0;
  }

  .oa-navbar {
    gap: 6px;
    padding: 0 10px;
  }

  .breadcrumb > :first-child {
    display: none;
  }

  .breadcrumb {
    gap: 5px;
    font-size: 12px;
  }

  .nav-actions {
    gap: 3px;
  }

  .oa-tabs {
    padding: 0 12px;
  }

  .app-container {
    padding: 12px;
  }

  .page-heading {
    gap: 8px;
    margin-bottom: 12px;
  }

  .page-heading h1 {
    font-size: 18px;
  }

  .page-heading p {
    font-size: 12px;
  }

  .heading-actions {
    gap: 5px;
  }

  .chat-layout {
    grid-template-columns: minmax(0, 1fr);
    height: calc(100vh - 184px);
    height: calc(100dvh - 184px);
    min-height: 440px;
  }

  .chat-side {
    display: none;
  }

  .chat-head {
    gap: 8px;
    padding: 10px 12px;
  }

  .chat-title p {
    font-size: 11px;
  }

  .context-bar {
    gap: 5px 8px;
    padding: 7px 12px;
  }

  .context-bar select {
    max-width: 200px;
  }

  .chat-body {
    padding: 16px 12px;
  }

  .welcome {
    padding: 14px 0;
  }

  .welcome h2 {
    font-size: 18px;
  }

  .question-grid {
    gap: 8px;
    margin-top: 18px;
  }

  .question-card {
    padding: 11px;
  }

  .chat-foot {
    padding: 10px 12px;
  }

  .input-box textarea,
  .library-search input {
    font-size: 16px;
  }

  .dialog-head {
    padding: 16px;
  }

  .document-meta,
  .library-search {
    padding: 12px 16px;
  }

  .document-body {
    padding: 16px;
  }

  .library-grid {
    grid-template-columns: minmax(0, 1fr);
    padding: 0 16px 16px;
  }
}

@media (max-width: 480px) {
  .oa-shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .oa-sidebar {
    display: none;
  }

  .oa-navbar {
    padding: 0 8px;
  }

  .breadcrumb {
    flex: 1;
  }

  .nav-actions > span:not(.avatar),
  .nav-actions .username,
  .nav-actions .user-name {
    display: none;
  }

  .page-heading {
    flex-wrap: wrap;
    align-items: center;
  }

  .page-heading p {
    max-width: 100%;
  }

  .heading-actions .btn {
    min-height: 32px;
    padding: 5px 9px;
    font-size: 12px;
  }

  .chat-layout {
    height: calc(100vh - 192px);
    height: calc(100dvh - 192px);
    min-height: 360px;
  }

  .chat-head {
    align-items: flex-start;
  }

  .chat-title p {
    max-width: 175px;
  }

  .chat-tools {
    gap: 0;
  }

  .chat-tools .btn {
    padding: 5px 7px;
    font-size: 12px;
  }

  .context-bar select {
    max-width: 100%;
  }

  .question-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .msg-row,
  .msg-row.user {
    max-width: 100%;
    gap: 7px;
  }

  .message-avatar {
    width: 27px;
    height: 27px;
    flex-basis: 27px;
  }

  .bubble {
    padding: 10px 11px;
    font-size: 13px;
  }

  .input-box {
    gap: 6px;
    padding: 8px;
  }

  .input-box textarea {
    min-height: 48px;
  }

  .send,
  #send {
    min-width: 36px;
    padding: 6px 9px;
  }

  .composer-hint {
    font-size: 10px;
  }

  .source-dialog {
    width: 100%;
    border-left: 0;
  }

  .library-dialog {
    width: calc(100% - 20px);
    max-height: calc(100vh - 24px);
    max-height: calc(100dvh - 24px);
  }
}

@media (pointer: coarse) {
  .icon-button,
  .send,
  #send,
  .source-card,
  .chip {
    min-height: 44px;
  }

  .icon-button {
    min-width: 40px;
  }

  .citation-ref {
    min-width: 32px;
    min-height: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-body {
    scroll-behavior: auto;
  }
}

/* OA navigation icons and the neutral account identity. */
.svg-symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.brand { text-decoration: none; padding-inline: 12px; }
.brand-mark { display: grid; place-items: center; width: 29px; height: 29px; flex: 0 0 29px; border-radius: 4px; background: var(--primary); color: white; font-size: 12px; font-weight: 700; }
.brand strong { font-size: 14px; }
.nav-chevron { margin-left: auto; }
.sub-nav { padding-left: 0; }
.sub-nav .nav-item { padding-left: 48px; }
.profile-avatar { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: #fff0e7; color: #b64a14; font-size: 12px; }
.profile-name { font-size: 12px; color: #606266; }
.side-description { margin: 10px 0 3px; color: var(--muted); font-size: 12px; }
.chat-side > .side-description { padding-inline: 12px; }
.nav-actions a { color: #606266; font-size: 12px; text-decoration: none; }
.nav-actions a:hover { color: var(--primary); }
.side-footer { display: flex; align-items: flex-start; gap: 8px; }
.side-footer p { margin: 5px 0 0; }
.sidebar-bottom { display: flex; align-items: center; gap: 8px; }
.sources-heading { margin: 10px 0 6px; color: var(--muted); font-size: 11px; }
.eyebrow { display: block; margin-bottom: 6px; color: var(--primary); font-size: 11px; }
.nav-collapsed .oa-shell { grid-template-columns: 54px minmax(0, 1fr); }
.nav-collapsed .oa-sidebar .brand strong,
.nav-collapsed .oa-sidebar .nav-item span,
.nav-collapsed .oa-sidebar .sidebar-bottom span { display: none; }
.nav-collapsed .oa-sidebar .brand { justify-content: center; padding: 0; }
.nav-collapsed .oa-sidebar .nav-item { justify-content: center; padding: 14px 0; }
.nav-collapsed .oa-sidebar .sidebar-bottom { justify-content: center; padding: 16px 0; }
@media (max-width: 760px) {
  .brand strong, .oa-sidebar .nav-item span, .sidebar-bottom span { display: none; }
  .oa-sidebar .brand { justify-content: center; padding: 0; }
  .oa-sidebar .nav-item { justify-content: center; padding: 14px 0; }
  .oa-sidebar .sidebar-bottom { justify-content: center; padding-inline: 0; }
}
@media (max-width: 480px) {
  .nav-collapsed .oa-shell { grid-template-columns: minmax(0, 1fr); }
  .crumb-separator { display: none; }
  .chat-layout { height: calc(100dvh - 208px); }
}

/* Redacted identity and partial navigation labels. */
.redacted {
  display: inline-block;
  flex: 0 0 auto;
  border-radius: 2px;
  background-color: #d6dde5;
  background-image: conic-gradient(#cbd3dd 25%, #e1e6ed 0 50%, #d5dde6 0 75%, #e8ecf1 0);
  background-size: 7px 7px;
  vertical-align: -2px;
  user-select: none;
}
.brand-mask-mark { width: 29px; height: 29px; }
.brand-mask-name { width: 130px; height: 18px; }
.account-mask-link { width: 60px; height: 13px; }
.account-mask-avatar { width: 28px; height: 28px; border-radius: 50%; }
.account-mask-name { width: 48px; height: 13px; }
.redacted-word { width: 1em; height: .95em; background-size: 4px 4px; }
.nav-collapsed .brand-mask-name { display: none; }
@media (max-width: 760px) {
  .brand-mask-name { display: none; }
}