:root {
  --paper: #efe6d4;
  --paper-deep: #e4d7bf;
  --slip: #f7f1e3;
  --ink: #241c14;
  --ink-soft: #5c5146;
  --cinnabar: #9e3a32;
  --cinnabar-soft: #c46a5a;
  --moss: #3d5746;
  --gold: #b08a4a;
  --line: rgba(36, 28, 20, 0.12);
  --shadow-ink: rgba(36, 28, 20, 0.06);
}

* {
  box-sizing: border-box;
}

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

body {
  color: var(--ink);
  background: var(--paper);
  font-family: "LXGW WenKai", "STKaiti", "Kaiti SC", serif;
  letter-spacing: 0.04em;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 11px,
      rgba(176, 138, 74, 0.08) 12px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 13px,
      rgba(62, 87, 70, 0.05) 14px
    );
}

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

a {
  color: var(--cinnabar);
  text-decoration: none;
}

.sheet {
  width: min(720px, 100%);
  margin: 0 auto;
  min-height: 100dvh;
  background: var(--slip);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  position: relative;
}

.sheet::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 1px;
  background: rgba(158, 58, 50, 0.28);
  pointer-events: none;
}

.beian {
  margin: 0;
  padding: 10px 32px 14px 48px;
  text-align: center;
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.beian a {
  color: inherit;
  text-decoration: none;
}

.beian a:hover,
.beian a:focus {
  text-decoration: underline;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 32px 16px 48px;
  border-bottom: 1px solid var(--line);
}

.brand h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 500;
}

.brand p {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.seal {
  flex: none;
  width: 74px;
  height: 74px;
  border: 2px solid var(--cinnabar);
  color: var(--cinnabar);
  display: grid;
  place-items: center;
  text-align: center;
  font-size: 12px;
  line-height: 1.2;
  writing-mode: vertical-rl;
  letter-spacing: 0.18em;
}

.hint {
  padding: 10px 32px 10px 48px;
  font-size: 12px;
  color: var(--moss);
  background: rgba(61, 87, 70, 0.06);
  border-bottom: 1px dashed var(--line);
}

.messages {
  padding: 20px 32px 140px 48px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.entry {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
}

.tag {
  font-size: 12px;
  letter-spacing: 0.3em;
  writing-mode: vertical-rl;
  color: var(--gold);
  border-right: 1px solid var(--gold);
  padding-right: 6px;
  height: fit-content;
}

.tag.ask {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

.body {
  font-size: 16px;
  line-height: 1.85;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: normal;
}

.body.pending {
  color: var(--ink-soft);
}

.cite-keep {
  white-space: nowrap;
}

.cite {
  display: inline;
  color: var(--cinnabar);
  border-bottom: 1px dotted var(--cinnabar-soft);
  white-space: nowrap;
}

.sources {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 12px;
  padding: 4px 8px;
  cursor: pointer;
}

.chip.active {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.source-text {
  margin-top: 8px;
  padding: 10px 12px;
  background: var(--paper-deep);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.fig-cap {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--ink-soft);
  text-align: center;
}

.figures {
  margin: 8px 0 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
}

.figures.inline {
  max-width: 560px;
}

.fig {
  margin: 0;
  display: flex;
  flex-direction: column;
}

.figures a {
  display: block;
  border: 1px solid var(--line);
  background: #fff;
}

.figures img {
  width: 100%;
  display: block;
  vertical-align: top;
}

.fig-cap {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--ink-soft);
  text-align: center;
}

.figures {
  margin: 8px 0 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
}

.figures.inline {
  max-width: 560px;
}

.fig {
  margin: 0;
  display: flex;
  flex-direction: column;
}

.figures a {
  display: block;
  border: 1px solid var(--line);
  background: #fff;
}

.figures img {
  width: 100%;
  display: block;
  vertical-align: top;
}

.composer {
  position: sticky;
  bottom: 0;
  padding: 12px 32px 24px 48px;
  background: linear-gradient(180deg, transparent, var(--slip) 28%);
}

.composer form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
}

.composer form.archive-form {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.archive-form p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.archive-scroll {
  max-height: min(58dvh, 640px);
  overflow: auto;
  padding-right: 4px;
  display: grid;
  gap: 10px;
}

.arch-title,
.arch-sub {
  margin: 4px 0 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.arch-sub {
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
}

.arch-field,
.arch-item {
  display: grid;
  gap: 4px;
}

.arch-field.wide,
.arch-item {
  grid-column: 1 / -1;
}

.arch-field > span,
.arch-item > span:first-child {
  color: var(--ink-soft);
  font-size: 13px;
}

.picks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pick {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.3;
  padding: 6px 10px;
  cursor: pointer;
}

.pick.on {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
  background: rgba(158, 58, 50, 0.06);
}

.arch-unit {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-soft);
  font-size: 14px;
}

.arch-unit input,
.archive-form .arch-unit input {
  width: 72px;
  flex: 0 0 auto;
}

.archive-form table {
  margin: 0;
}

.archive-form th {
  width: 38%;
  color: var(--ink-soft);
  font-weight: 400;
  vertical-align: middle;
}

.archive-form td {
  vertical-align: middle;
}

.archive-form input,
.archive-form select {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  outline: none;
}

.archive-form .arch-field input,
.archive-form .arch-item input {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.archive-form button.send {
  justify-self: end;
}

.diet-bar {
  grid-column: 1 / -1;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.diet-bar p {
  margin: 0 0 6px;
}

.diet-bar table {
  margin: 6px 0;
}

.diet-bar th {
  width: 28%;
  color: var(--ink-soft);
  font-weight: 400;
  vertical-align: middle;
}

.diet-bar td {
  vertical-align: middle;
}

.diet-bar select {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  outline: none;
}

.diet-bar button.send {
  margin-top: 4px;
}

.diet-log {
  max-height: 260px;
  overflow: auto;
}

.diet-log .linkish {
  margin-bottom: 6px;
}

.diet-log th {
  width: auto;
  font-size: 13px;
}

.diet-log tr.on td {
  color: var(--cinnabar);
}

.composer form.archive-form {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.archive-form p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.archive-scroll {
  max-height: min(58dvh, 640px);
  overflow: auto;
  padding-right: 4px;
  display: grid;
  gap: 10px;
}

.arch-title,
.arch-sub {
  margin: 4px 0 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.arch-sub {
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
}

.arch-field,
.arch-item {
  display: grid;
  gap: 4px;
}

.arch-field.wide,
.arch-item {
  grid-column: 1 / -1;
}

.arch-field > span,
.arch-item > span:first-child {
  color: var(--ink-soft);
  font-size: 13px;
}

.picks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pick {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.3;
  padding: 6px 10px;
  cursor: pointer;
}

.pick.on {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
  background: rgba(158, 58, 50, 0.06);
}

.arch-unit {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-soft);
  font-size: 14px;
}

.arch-unit input,
.archive-form .arch-unit input {
  width: 72px;
  flex: 0 0 auto;
}

.archive-form table {
  margin: 0;
}

.archive-form th {
  width: 38%;
  color: var(--ink-soft);
  font-weight: 400;
  vertical-align: middle;
}

.archive-form td {
  vertical-align: middle;
}

.archive-form input,
.archive-form select {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  outline: none;
}

.archive-form .arch-field input,
.archive-form .arch-item input {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.archive-form button.send {
  justify-self: end;
}

.diet-bar {
  grid-column: 1 / -1;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.diet-bar p {
  margin: 0 0 6px;
}

.diet-bar table {
  margin: 6px 0;
}

.diet-bar th {
  width: 28%;
  color: var(--ink-soft);
  font-weight: 400;
  vertical-align: middle;
}

.diet-bar td {
  vertical-align: middle;
}

.diet-bar select {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  outline: none;
}

.diet-bar button.send {
  margin-top: 4px;
}

.diet-log {
  max-height: 260px;
  overflow: auto;
}

.diet-log .linkish {
  margin-bottom: 6px;
}

.diet-log th {
  width: auto;
  font-size: 13px;
}

.diet-log tr.on td {
  color: var(--cinnabar);
}

textarea {
  width: 100%;
  border: 0;
  resize: none;
  background: transparent;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  min-height: 52px;
  outline: none;
}

button.send {
  border: 0;
  background: var(--cinnabar);
  color: #f7f1e3;
  padding: 8px 16px;
  letter-spacing: 0.2em;
  cursor: pointer;
}

button.send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.meta-row {
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--ink-soft);
}

.linkish {
  background: none;
  border: 0;
  color: var(--moss);
  cursor: pointer;
  padding: 0;
}

.empty {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
  padding: 32px 0;
}

.sheet.wide {
  width: min(960px, 100%);
}

.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
}

.chat-form textarea {
  width: 100%;
  min-height: 72px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 16px;
  line-height: 1.5;
  resize: vertical;
}

.dangan-msg {
  margin: 10px 0;
  padding: 8px 10px;
  border-left: 3px solid var(--gold);
  background: #fff;
}

.dangan-msg.bot {
  border-left-color: var(--moss);
}

.board-actions {
  white-space: nowrap;
}

.board-actions .linkish {
  margin-right: 10px;
}

.board-actions .linkish:last-child {
  margin-right: 0;
}

.board-table tr {
  cursor: pointer;
}

.board-table tr.on {
  background: var(--paper-deep);
}

.uid {
  font-size: 12px;
  color: var(--ink-soft);
  word-break: break-all;
}

.thread-box {
  margin: 12px 0 8px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  max-height: 520px;
  overflow: auto;
}

.log-item {
  margin: 10px 0;
  padding: 8px 10px;
  border-left: 3px solid var(--gold);
  background: #fff;
}

.log-item.compact {
  cursor: pointer;
}

.log-item.assistant {
  border-left-color: var(--moss);
}

.log-item.user {
  border-left-color: var(--cinnabar);
}

.log-item.hit {
  background: var(--paper-deep);
}

.log-item .who {
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 4px;
}

.log-body {
  white-space: pre-wrap;
  line-height: 1.6;
  font-size: 14px;
}

.log-excerpt {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.6;
  font-size: 14px;
}

.log-go {
  margin-top: 6px;
  font-size: 12px;
  color: var(--moss);
}

.log-cites,
.log-flag {
  margin-top: 6px;
  font-size: 12px;
  color: var(--moss);
}

.log-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 12px 0 8px;
}

.log-search {
  display: flex;
  gap: 8px;
  flex: 1;
  min-width: 220px;
}

.log-search input {
  flex: 1;
}

.sheet.wide {
  width: min(960px, 100%);
}

.board-table tr {
  cursor: pointer;
}

.board-table tr.on {
  background: var(--paper-deep);
}

.uid {
  font-size: 12px;
  color: var(--ink-soft);
  word-break: break-all;
}

.thread-box {
  margin: 12px 0 8px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  max-height: 520px;
  overflow: auto;
}

.log-item {
  margin: 10px 0;
  padding: 8px 10px;
  border-left: 3px solid var(--gold);
  background: #fff;
}

.log-item.compact {
  cursor: pointer;
}

.log-item.assistant {
  border-left-color: var(--moss);
}

.log-item.user {
  border-left-color: var(--cinnabar);
}

.log-item.hit {
  background: var(--paper-deep);
}

.log-item .who {
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 4px;
}

.log-body {
  white-space: pre-wrap;
  line-height: 1.6;
  font-size: 14px;
}

.log-excerpt {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.6;
  font-size: 14px;
}

.log-go {
  margin-top: 6px;
  font-size: 12px;
  color: var(--moss);
}

.log-cites,
.log-flag {
  margin-top: 6px;
  font-size: 12px;
  color: var(--moss);
}

.log-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 12px 0 8px;
}

.log-search {
  display: flex;
  gap: 8px;
  flex: 1;
  min-width: 220px;
}

.log-search input {
  flex: 1;
}

.admin {
  padding: 28px 32px 48px 48px;
}

.admin h2 {
  font-weight: 500;
  margin: 28px 0 12px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.stat {
  border: 1px solid var(--line);
  padding: 12px;
  background: var(--paper);
}

.stat b {
  display: block;
  font-size: 22px;
  font-weight: 500;
}

.form-grid {
  display: grid;
  gap: 10px;
}

input[type="text"],
textarea.box {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 8px 10px;
  color: var(--ink);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--line);
}

.badge {
  display: inline-block;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  font-size: 11px;
  padding: 0 6px;
}

.badge.syndrome {
  border-color: var(--moss);
  color: var(--moss);
}

.tag-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 12px 0;
}

.tag-table .readonly {
  color: var(--ink-soft);
  font-size: 12px;
  max-width: 180px;
}

.tag-box {
  width: 100%;
  min-width: 120px;
  font-size: 12px;
}

.linkish.danger {
  color: var(--cinnabar);
}

.notice-warn {
  color: var(--cinnabar);
  font-size: 14px;
}

.pick-col {
  width: 36px;
  text-align: center;
}

.pick-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  cursor: pointer;
}

.entry-qr {
  padding: 12px 32px 0 48px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.entry-qr .ok {
  color: var(--moss);
}

.entry-qr a {
  word-break: break-all;
}

.entry-qr img {
  display: block;
  width: 168px;
  height: 168px;
  margin-top: 8px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
}

.qrbox img {
  width: 220px;
  height: 220px;
  display: block;
  object-fit: contain;
}

.qrbox code {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  word-break: break-all;
  color: var(--ink-soft);
}

.ilink-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin: 12px 0 8px;
}

.entry-qr {
  padding: 12px 32px 0 48px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.entry-qr .ok {
  color: var(--moss);
}

.entry-qr a {
  word-break: break-all;
}

.entry-qr img {
  display: block;
  width: 168px;
  height: 168px;
  margin-top: 8px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
}

.qrbox img {
  width: 220px;
  height: 220px;
  display: block;
  object-fit: contain;
}

.qrbox code {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  word-break: break-all;
  color: var(--ink-soft);
}

.ilink-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin: 12px 0 8px;
}

/* 外网 H5：建档表置顶，消息区折叠到下方 */
.sheet-h5 {
  display: flex;
  flex-direction: column;
}

.sheet-h5 .composer {
  order: 2;
  position: static;
  background: var(--slip);
}

.sheet-h5 .messages {
  order: 3;
  max-height: 36dvh;
  overflow: auto;
}

.sheet-h5 .archive-scroll {
  max-height: none;
}

.sheet-h5 .composer form.archive-form {
  position: static;
  background: transparent;
  box-shadow: none;
}

.sheet-h5 .done-text {
  font-size: 1.05rem;
  line-height: 1.7;
  padding: 16px 4px;
  white-space: pre-line;
}

@media (max-width: 640px) {
  .sheet::after {
    left: 18px;
  }
  .topbar,
  .hint,
  .beian,
  .entry-qr,
  .messages,
  .composer,
  .admin {
    padding-left: 32px;
    padding-right: 18px;
  }
  .stats {
    grid-template-columns: 1fr 1fr;
  }
  .arch-grid {
    grid-template-columns: 1fr;
  }
  .sheet-h5 .messages {
    max-height: 28dvh;
  }
}