.avatar {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  overflow: hidden;
  color: #fff;
  background: #2f77c7;
  font-size: 14px;
  font-weight: 600;
}

.user .avatar {
  background: #7b3db7;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.message-card {
  position: relative;
  overflow: hidden;
  max-width: min(74ch, calc(100vw - 58px));
  padding: 0;
  border-radius: 18px;
  font-size: var(--font-size);
  line-height: var(--line-height);
  letter-spacing: 0;
  white-space: pre-wrap;
  word-break: break-word;
  transition:
    background-color var(--motion-fast),
    box-shadow var(--motion-fast),
    scale var(--motion-fast);
}

.message-card:hover,
.message-card:focus-visible {
  box-shadow: 0 7px 18px rgba(31, 28, 23, 0.05);
}

.user .message-card {
  width: fit-content;
  max-width: min(64ch, calc(100vw - 58px));
  padding: var(--user-bubble-padding-y) var(--user-bubble-padding-x);
  background: var(--user);
}

.assistant .message-card {
  padding: 0;
  background: transparent;
}

.message-meta {
  margin-top: 4px;
  color: var(--muted);
  font-size: var(--meta-font-size);
  line-height: 1.4;
}

.user .message-meta {
  display: none;
}

.message-more {
  display: none;
  place-items: center;
  width: var(--more-button-size);
  height: var(--more-button-size);
  color: #999;
  font-size: 20px;
}

.switcher {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
  color: #a0a0a0;
  font-size: 15px;
}

.switcher button:disabled {
  opacity: 0.25;
}

.message-menu {
  position: fixed;
  left: 50%;
  bottom: calc(var(--composer-height) + max(env(safe-area-inset-bottom), 8px) + 8px);
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  max-width: min(94vw, 640px);
  gap: 6px;
  overflow: visible;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
  transform-origin: 50% 100%;
  animation: menu-float-in 180ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.message-menu button {
  flex: 0 0 auto;
  padding: 8px 10px;
  border-radius: 6px;
  color: #2d68a8;
  font-size: 15px;
  transition:
    background-color var(--motion-fast),
    color var(--motion-fast),
    scale var(--motion-fast);
}

.message-menu button:active,
.message-menu button:hover {
  background: #f0f4f8;
}

.composer {
  position: fixed;
  right: max(7px, calc((100vw - 820px) / 2 + 7px));
  bottom: max(env(safe-area-inset-bottom), 7px);
  left: max(7px, calc((100vw - 820px) / 2 + 7px));
  z-index: 20;
  overflow: visible;
  min-height: var(--composer-min-height);
  padding: 6px 8px 6px;
  border: 1px solid #dedede;
  border-radius: 16px;
  background: #f4f5f6;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition:
    border-color var(--motion-soft),
    background-color var(--motion-soft),
    box-shadow var(--motion-soft),
    transform var(--motion-soft);
}

.composer textarea {
  display: block;
  width: 100%;
  max-height: var(--composer-max-textarea);
  min-height: 24px;
  resize: none;
  border: 0;
  outline: 0;
  background: transparent;
  color: #2a2a2a;
  font-size: var(--composer-font-size);
  line-height: 1.32;
  transition:
    color var(--motion-fast),
    opacity var(--motion-fast);
}

.composer textarea::placeholder {
  color: #8a8a8a;
}

.composer-bottom {
  display: grid;
  grid-template-columns: var(--tool-button-size) var(--tool-button-size) minmax(62px, auto) minmax(0, 1fr) var(--send-button-size);
  align-items: center;
  gap: 4px;
  margin-top: 4px;
  transition: grid-template-columns var(--motion-soft), gap var(--motion-soft);
}

.roundtable-mode .composer-bottom {
  grid-template-columns: minmax(56px, auto) var(--tool-button-size) minmax(46px, auto) minmax(52px, auto) var(--send-button-size);
  gap: 5px;
}

.context-badge,
.composer select,
.model-select-button {
  min-width: 0;
  height: 24px;
  padding: 0 4px;
  border: 0;
  border-radius: 17px;
  background: transparent;
  color: #333;
  font-size: 12px;
}

.context-badge {
  max-width: 82px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.composer select {
  width: 100%;
  max-width: none;
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-select-button {
  display: block;
  width: 100%;
  max-width: none;
  overflow: hidden;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.model-select-button.active,
.model-select-button:focus-visible {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 0 0 1px rgba(34, 34, 34, 0.08) inset;
}

.model-picker-panel {
  position: fixed;
  right: max(10px, calc((100vw - 820px) / 2 + 10px));
  bottom: calc(var(--composer-height) + max(env(safe-area-inset-bottom), 7px) + 10px);
  left: max(10px, calc((100vw - 820px) / 2 + 10px));
  z-index: 32;
  max-height: min(46dvh, 380px);
  overflow: hidden;
  border: 1px solid rgba(220, 214, 204, 0.95);
  border-radius: 18px;
  background: rgba(255, 253, 249, 0.98);
  box-shadow:
    0 24px 54px rgba(38, 33, 27, 0.18),
    0 1px 0 rgba(255, 255, 255, 0.9) inset;
  backdrop-filter: blur(18px);
  transform-origin: 50% 100%;
  animation: model-picker-rise 180ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.model-picker-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px 8px;
  border-bottom: 1px solid rgba(226, 220, 211, 0.75);
}

.model-picker-head strong {
  color: #3a342c;
  font-size: 14px;
}

.model-picker-head button {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  color: #756a5d;
  background: rgba(45, 40, 33, 0.05);
  font-size: 18px;
}

.model-picker-list {
  display: grid;
  gap: 4px;
  max-height: calc(min(46dvh, 380px) - 48px);
  overflow-y: auto;
  padding: 8px;
  overscroll-behavior: contain;
}

.model-picker-list button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 40px;
  padding: 9px 10px;
  border-radius: 12px;
  color: #332f29;
  background: transparent;
  text-align: left;
}

.model-picker-list button span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.model-picker-list button b {
  color: #8d6b31;
  font-size: 12px;
}

.model-picker-list button:hover,
.model-picker-list button:focus-visible {
  background: rgba(50, 42, 32, 0.06);
}

.model-picker-list button.selected {
  background: var(--surface-selected);
  box-shadow: 0 0 0 1px rgba(141, 107, 49, 0.14) inset;
  font-weight: 700;
}

.composer-tool-button.is-roundtable-members {
  width: auto;
  min-width: 56px;
  height: 28px;
  padding: 0 9px;
  border: 1px solid #dedede;
  border-radius: 999px;
  color: #4d463c;
  background: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.roundtable-mode .context-badge {
  max-width: 64px;
}

.roundtable-mode #modelSelect,
.roundtable-mode .model-select-button {
  display: none;
}

.roundtable-context-button,
.roundtable-cycle-button {
  display: none;
  width: auto;
  min-width: 52px;
  height: 28px;
  padding: 0 10px;
  border: 1px solid #dedede;
  border-radius: 999px;
  color: #6a5b44;
  background: #f7f3eb;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.roundtable-mode .roundtable-context-button,
.roundtable-mode .roundtable-cycle-button {
  display: grid;
  place-items: center;
}

.roundtable-context-button.active,
.roundtable-cycle-button.is-ending {
  color: #fff;
  border-color: #8d6b31;
  background: #8d6b31;
}

.roundtable-context-dock {
  margin-top: 8px;
}

.roundtable-mention-picker {
  position: absolute;
  right: 10px;
  bottom: calc(100% + 8px);
  left: 10px;
  z-index: 35;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  max-height: min(42dvh, 360px);
  overflow-y: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 42px rgba(38, 34, 28, 0.14);
  backdrop-filter: blur(18px);
}

.roundtable-mention-picker[hidden] {
  display: none;
}

.roundtable-mention-picker-title,
.roundtable-mention-empty {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.roundtable-mention-choice {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 0 8px;
  align-items: center;
  min-height: 46px;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(250, 247, 240, 0.9);
  text-align: left;
}

.roundtable-mention-choice-index {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 9px;
  color: #fff;
  background: var(--text);
  font-size: 12px;
  font-weight: 800;
}

.roundtable-mention-choice b,
.roundtable-mention-choice small {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.roundtable-mention-choice b {
  color: var(--text);
  font-size: 13px;
}

.roundtable-mention-choice small {
  color: var(--muted);
  font-size: 11px;
}

.send-button {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: var(--send-button-size);
  height: var(--send-button-size);
  border-radius: 50%;
  color: #ffffff;
  background: #d7d7d7;
  font-size: 18px;
  font-weight: 700;
  transform-origin: center;
  transition:
    background-color var(--motion-fast),
    color var(--motion-fast),
    box-shadow var(--motion-fast),
    scale var(--motion-fast);
}

body.is-ready .send-button {
  background: #222;
  box-shadow: 0 10px 24px rgba(32, 32, 32, 0.16);
  animation: send-ready 420ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

body.is-generating .send-button {
  background: #222;
  animation: breathing-stop 1200ms ease-in-out infinite;
}

body.roundtable-busy .roundtable-cycle-button,
body.roundtable-busy .send-button {
  animation: breathing-stop 1200ms ease-in-out infinite;
}

.roundtable-mode-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  max-width: 680px;
  margin: 0 auto 10px;
}

.roundtable-mode-head > div:first-child {
  display: grid;
  gap: 2px;
}

.mode-kicker {
  color: #92784d;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.roundtable-mode-head strong {
  color: #201b14;
  font-size: 19px;
  font-weight: 700;
}

.mode-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.mode-actions button {
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid #dfd1b8;
  border-radius: 8px;
  color: #3a3124;
  background: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}

.source-action {
  display: inline-grid;
  place-items: center;
  text-decoration: none;
}

.article-action {
  display: inline-grid;
  place-items: center;
  color: #fff;
  background: #222;
  text-decoration: none;
}

.roundtable-busy .mode-actions button[data-command="roundtable-start"] {
  color: #fff;
  border-color: #2f281e;
  background: #2f281e;
}

.roundtable-member-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  max-width: 680px;
  margin: 0 auto 12px;
  padding: 10px;
  border: 1px solid #e5dac5;
  background: rgba(255, 255, 255, 0.74);
  transform-origin: 50% 0;
  animation: member-panel-open 220ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.roundtable-member-option {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 36px;
  gap: 1px 8px;
  align-items: center;
  min-height: 48px;
  padding: 8px;
  border: 1px solid #e2d8c5;
  border-radius: 8px;
  background: #fffdf8;
  text-align: left;
  transition:
    border-color var(--motion-fast),
    background-color var(--motion-fast),
    box-shadow var(--motion-fast),
    scale var(--motion-fast),
    transform var(--motion-fast);
}

.roundtable-member-option:hover,
.roundtable-member-option:focus-within {
  box-shadow: 0 10px 24px rgba(55, 48, 39, 0.07);
  transform: translateY(-1px);
}

.roundtable-member-main {
  grid-column: 1;
  grid-row: 1 / 3;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 1px 8px;
  align-items: center;
  min-width: 0;
  text-align: left;
}

.roundtable-member-main span {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid #d2c4ab;
  border-radius: 6px;
  color: #7a6b53;
  font-size: 13px;
  font-weight: 700;
}

.roundtable-member-main b {
  min-width: 0;
  overflow: hidden;
  color: #28231b;
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.roundtable-member-main small {
  min-width: 0;
  overflow: hidden;
  color: #887963;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.roundtable-member-edit {
  grid-column: 2;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid #e2d8c5;
  border-radius: 8px;
  color: #6d5b3f;
  background: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 700;
}

.roundtable-member-option.selected {
  border-color: #b7924d;
  background: #fff4d9;
  animation: member-select 240ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.roundtable-member-option.speaking {
  border-color: rgba(34, 34, 34, 0.42);
  background: rgba(255, 250, 238, 0.98);
  box-shadow:
    0 12px 28px rgba(55, 48, 39, 0.08),
    0 0 0 4px rgba(34, 34, 34, 0.035);
}

.roundtable-member-option.speaking .roundtable-member-main span {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
  animation: speaker-pulse 1200ms ease-in-out infinite;
}

.roundtable-member-option.writer {
  border-style: dashed;
}

.roundtable-member-add {
  min-height: 48px;
  border: 1px dashed #cdbb9d;
  border-radius: 8px;
  color: #65553f;
  background: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  font-weight: 700;
}

.roundtable-context-options {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 10px;
  border: 1px solid #e5dac5;
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.78);
  animation: soft-unfold 220ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.roundtable-context-head {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  color: #4a3e2d;
}

.roundtable-context-head span {
  color: #887963;
  font-size: 11px;
}

.roundtable-context-options label {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  color: #62543e;
  font-size: 13px;
}

.roundtable-context-options input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #8d6b31;
}

.roundtable-context-number {
  justify-content: space-between;
}

.roundtable-context-number input {
  width: 78px;
  min-width: 0;
  padding: 6px 7px;
  border: 1px solid #d9cdb7;
  border-radius: 7px;
  background: #fff;
  color: #302820;
}

.roundtable-context-topic {
  grid-column: 1 / -1;
  align-items: stretch;
  flex-direction: column;
}

.roundtable-context-topic input {
  width: 100%;
  min-width: 0;
  padding: 8px 9px;
  border: 1px solid #d9cdb7;
  border-radius: 7px;
  background: #fff;
  color: #302820;
}

.roundtable-member-option.selected .roundtable-member-main span {
  color: #fff;
  border-color: #8d6b31;
  background: #8d6b31;
}

.roundtable-section-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  max-width: 680px;
  margin: 0 auto 10px;
  color: #7f6e53;
  font-size: 12px;
}

.roundtable-section-label span {
  color: #30281f;
  font-size: 14px;
  font-weight: 700;
}

.roundtable-section-label small {
  color: #8f8067;
  font-size: 11px;
  text-align: right;
}

.roundtable-section-label-chat {
  margin-top: 22px;
}

.manuscript-desk {
  display: grid;
  justify-items: center;
  max-width: 680px;
  margin: 0 auto -34px;
  padding: 4px 0 0;
  position: relative;
  z-index: 2;
}

.manuscript-paper {
  position: relative;
  width: min(calc(100vw - 34px), 430px);
  min-height: 168px;
  padding: 18px 18px 42px;
  border-radius: 0 0 18px 18px;
  border: 1px solid #dfd4bd;
  background:
    linear-gradient(90deg, rgba(172, 148, 101, 0.09) 1px, transparent 1px) 34px 0 / 1px 100% no-repeat,
    linear-gradient(180deg, #fffef9 0%, #fff9ec 100%);
  box-shadow:
    0 30px 46px rgba(67, 51, 25, 0.18),
    0 8px 18px rgba(101, 79, 38, 0.08),
    0 2px 0 rgba(255, 255, 255, 0.95) inset;
  transform: rotate(-0.35deg);
}

.paper-scroll-viewport {
  position: relative;
  max-height: var(--paper-body-height, 278px);
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-width: none;
  transition: max-height 180ms ease, mask-image 180ms ease, opacity 180ms ease;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 78%, rgba(0, 0, 0, 0.15) 100%);
  mask-image: linear-gradient(180deg, #000 0%, #000 78%, rgba(0, 0, 0, 0.15) 100%);
}

.paper-scroll-viewport::-webkit-scrollbar {
  display: none;
}

.paper-new-anchor {
  position: absolute;
  left: 50%;
  bottom: 26px;
  z-index: 2;
  padding: 7px 12px;
  border: 1px solid rgba(141, 107, 49, 0.28);
  border-radius: 999px;
  color: #5f4d31;
  background: rgba(255, 250, 240, 0.94);
  box-shadow:
    0 10px 20px rgba(100, 79, 40, 0.16),
    0 1px 0 rgba(255, 255, 255, 0.86) inset;
  font-size: 12px;
  font-weight: 800;
  transform: translateX(-50%);
}

.paper-new-anchor[hidden] {
  display: none;
}

.manuscript-paper.paper-peek .paper-scroll-viewport::after,
.manuscript-paper.paper-deep-collapsed .paper-scroll-viewport::after {
  content: "";
  position: sticky;
  left: 0;
  right: 0;
  bottom: 0;
  display: block;
  height: 48px;
  margin-top: -48px;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 249, 236, 0), rgba(255, 249, 236, 0.96));
}

.paper-grip {
  position: absolute;
  left: 50%;
  bottom: -24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 186px;
  max-width: calc(100% - 36px);
  padding: 10px 14px;
  border: 1px solid rgba(176, 152, 110, 0.42);
  border-radius: 999px;
  color: #5f4d31;
  background:
    linear-gradient(180deg, rgba(255, 248, 228, 0.98), rgba(245, 229, 188, 0.96));
  box-shadow:
    0 14px 24px rgba(100, 79, 40, 0.2),
    0 1px 0 rgba(255, 255, 255, 0.8) inset;
  transform: translateX(-50%);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: ns-resize;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.paper-grip:hover,
.paper-grip:focus-visible {
  transform: translateX(-50%) translateY(-1px);
  box-shadow:
    0 18px 28px rgba(100, 79, 40, 0.24),
    0 1px 0 rgba(255, 255, 255, 0.84) inset;
}

body.paper-dragging .paper-grip {
  transform: translateX(-50%) translateY(-2px) scale(1.01);
  box-shadow:
    0 20px 32px rgba(91, 71, 34, 0.28),
    0 1px 0 rgba(255, 255, 255, 0.92) inset;
}

.paper-grip-ribs {
  display: inline-grid;
  gap: 3px;
  flex: 0 0 auto;
}

.paper-grip-ribs i {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: rgba(109, 85, 47, 0.42);
}

.paper-grip-copy {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1px;
}

.paper-grip-meter {
  flex: 0 0 auto;
  min-width: 44px;
  padding: 4px 8px;
  border-radius: 999px;
  color: #fffaf0;
  background: linear-gradient(135deg, #72562a, #453113);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
  font-size: 11px;
  font-weight: 800;
  text-align: center;
}

.paper-grip[data-state="collapsed"] .paper-grip-copy::before {
  content: "下拉展开 · ";
}

.paper-grip[data-state="mid"] .paper-grip-copy::before {
  content: "拖动调节 · ";
}

.paper-grip[data-state="expanded"] .paper-grip-copy::before {
  content: "上拉收起 · ";
}

.manuscript-paper::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  width: 82px;
  height: 20px;
  border: 1px solid rgba(178, 162, 132, 0.36);
  background: rgba(244, 231, 196, 0.68);
  transform: translateX(-50%) rotate(1deg);
}

.paper-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  color: #8a7551;
  font-size: 12px;
  font-weight: 700;
}

.paper-meta button {
  padding: 4px 7px;
  border: 1px solid #e3d7bf;
  border-radius: 7px;
  color: #6e5b39;
  background: #fffaf0;
  font-size: 12px;
}

.manuscript-paper p {
  margin: 0;
  color: #28231c;
  font-size: 16px;
  line-height: 1.78;
  white-space: pre-wrap;
  word-break: break-word;
}

.roundtable-discussion {
  position: relative;
  display: grid;
  gap: 12px;
  max-width: 680px;
  margin: 0 auto;
  padding: 64px 0 12px;
}

.roundtable-discussion::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 6px;
  right: 6px;
  bottom: 0;
  border-radius: 26px 26px 0 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(250, 248, 243, 0.96)),
    linear-gradient(180deg, rgba(210, 223, 238, 0.12), rgba(255, 255, 255, 0));
  box-shadow:
    0 -1px 0 rgba(255, 255, 255, 0.6) inset,
    0 12px 30px rgba(74, 82, 96, 0.08);
  z-index: -1;
}

.roundtable-empty {
  display: grid;
  gap: 5px;
  margin: 0 12px;
  padding: 18px 14px;
  border: 1px dashed #d8c8aa;
  border-radius: 16px;
  color: #776b59;
  background: rgba(255, 255, 255, 0.84);
  text-align: center;
}

.roundtable-empty strong {
  color: #352d22;
  font-size: 15px;
}

.roundtable-empty span {
  font-size: 13px;
  line-height: 1.5;
}

.roundtable-divider {
  display: flex;
  justify-content: center;
  margin: 0;
}

.roundtable-divider span {
  padding: 4px 10px;
  border-radius: 999px;
  color: #8c8a84;
  background: rgba(237, 239, 242, 0.96);
  font-size: 12px;
}

.roundtable-line {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 0 12px;
  animation: roundtable-line-in 240ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.roundtable-line.user {
  grid-template-columns: minmax(0, 1fr) 48px;
}

.roundtable-line.user .roundtable-avatar {
  grid-column: 2;
  grid-row: 1;
}

.roundtable-line.user .roundtable-bubble-stack {
  grid-column: 1;
  grid-row: 1;
  justify-items: end;
}

.roundtable-line.user .roundtable-bubble-meta {
  justify-content: flex-end;
}

.roundtable-line.user .roundtable-speech {
  color: #fff;
  border-color: rgba(71, 141, 217, 0.22);
  background: linear-gradient(180deg, #6db7ff 0%, #5ba8f7 100%);
  border-top-right-radius: 10px;
}

.roundtable-bubble-stack {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.roundtable-bubble-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 20px;
}

.roundtable-avatar {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: #fff;
  box-shadow: 0 10px 16px rgba(25, 36, 54, 0.12);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.roundtable-speaker {
  color: #665847;
  font-size: 13px;
  font-weight: 700;
}

.roundtable-role-badge {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.roundtable-bubble-meta time,
.roundtable-writer-meta time {
  color: #99948c;
  font-size: 11px;
}

.roundtable-mention-badge {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0 8px;
  border-radius: 999px;
  color: #6a4e2b;
  background: rgba(193, 167, 118, 0.18);
  font-size: 11px;
  font-weight: 700;
}

.roundtable-speech {
  position: relative;
  overflow: hidden;
  min-width: 0;
  max-width: min(76vw, 430px);
  padding: 12px 14px;
  border: 1px solid rgba(219, 223, 230, 0.9);
  border-radius: 10px 18px 18px 18px;
  color: #28231e;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 18px rgba(54, 66, 81, 0.06);
  font-size: 15px;
  line-height: 1.62;
  white-space: pre-wrap;
  word-break: break-word;
  transition:
    border-color var(--motion-fast),
    background-color var(--motion-fast),
    box-shadow var(--motion-fast),
    transform var(--motion-fast);
}

.roundtable-speech:hover,
.roundtable-speech:focus-visible {
  box-shadow:
    0 10px 24px rgba(55, 48, 39, 0.06),
    0 1px 0 rgba(255, 255, 255, 0.76) inset;
  transform: translateY(-1px);
}

.roundtable-mention {
  display: inline-block;
  padding: 0 5px;
  border-radius: 8px;
  font-weight: 700;
  animation: mention-glow 680ms ease-out both;
}

.roundtable-mention.unknown {
  color: #7d7469;
  background: rgba(148, 146, 140, 0.12);
}

.roundtable-mention.tone-user {
  color: #566576;
  background: rgba(140, 151, 163, 0.16);
}

.roundtable-mention.tone-setting {
  color: #876642;
  background: rgba(162, 128, 88, 0.16);
}

.roundtable-mention.tone-plot {
  color: #5a6279;
  background: rgba(109, 118, 143, 0.14);
}

.roundtable-mention.tone-review {
  color: #61736e;
  background: rgba(127, 143, 137, 0.15);
}

.roundtable-mention.tone-style {
  color: #7d626d;
  background: rgba(152, 118, 131, 0.14);
}

.roundtable-mention.tone-writer {
  color: #584f43;
  background: rgba(90, 74, 53, 0.12);
}

.roundtable-writer-block {
  padding: 0 12px;
}

.roundtable-writer-card {
  position: relative;
  overflow: hidden;
  padding: 14px;
  border: 1px solid #dfd4bd;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 253, 246, 0.98), rgba(255, 249, 236, 0.94)),
    linear-gradient(90deg, rgba(172, 148, 101, 0.07) 1px, transparent 1px) 34px 0 / 1px 100% no-repeat;
  box-shadow:
    0 12px 28px rgba(88, 73, 40, 0.1),
    0 1px 0 rgba(255, 255, 255, 0.92) inset;
  animation: writer-card-land 320ms cubic-bezier(0.16, 1, 0.3, 1) both;
  transition:
    box-shadow var(--motion-fast),
    transform var(--motion-fast);
}

.roundtable-writer-card:hover,
.roundtable-writer-card:focus-visible {
  box-shadow: 0 20px 42px rgba(52, 44, 33, 0.11);
  transform: translateY(-1px);
}

.roundtable-writer-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.roundtable-writer-meta {
  display: grid;
  gap: 3px;
}

.roundtable-writer-title {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.roundtable-writer-title strong {
  color: #3a2d1f;
  font-size: 14px;
}

.roundtable-writer-tip {
  margin-bottom: 8px;
  color: #8c7652;
  font-size: 12px;
  font-weight: 700;
}

.roundtable-writer-snippet {
  color: #2d261e;
  font-size: 15px;
  line-height: 1.78;
  white-space: pre-wrap;
  word-break: break-word;
}

.roundtable-avatar.tone-user {
  background: linear-gradient(135deg, #60b7ff, #4e8fe8);
}

.roundtable-avatar.tone-setting {
  background: linear-gradient(135deg, #e4b65f, #a87625);
}

.roundtable-avatar.tone-plot {
  background: linear-gradient(135deg, #8d8aff, #5f63d9);
}

.roundtable-avatar.tone-review {
  background: linear-gradient(135deg, #7ac7be, #3b958c);
}

.roundtable-avatar.tone-style {
  background: linear-gradient(135deg, #f38ab7, #d85f93);
}

.roundtable-avatar.tone-writer {
  background: linear-gradient(135deg, #5a4a35, #251b11);
}

.roundtable-role-badge.tone-user {
  color: #2671c5;
  background: rgba(104, 182, 255, 0.16);
}

.roundtable-role-badge.tone-setting {
  color: #8e6120;
  background: rgba(228, 182, 95, 0.18);
}

.roundtable-role-badge.tone-plot {
  color: #585fc7;
  background: rgba(141, 138, 255, 0.16);
}

.roundtable-role-badge.tone-review {
  color: #2d837a;
  background: rgba(122, 199, 190, 0.18);
}

.roundtable-role-badge.tone-style {
  color: #ba4c82;
  background: rgba(243, 138, 183, 0.16);
}

.roundtable-role-badge.tone-writer {
  color: #5d4526;
  background: rgba(186, 156, 104, 0.2);
}

.roundtable-decision {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0 6px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

.roundtable-decision.adopted,
.roundtable-decision.approved {
  color: #21614c;
  background: rgba(73, 168, 127, 0.16);
}

.roundtable-decision.ignored {
  color: #7b715f;
  background: rgba(140, 130, 112, 0.16);
}

.roundtable-decision.revision {
  color: #9a5b1c;
  background: rgba(214, 145, 60, 0.18);
}

@media (max-width: 420px) {
  .roundtable-mode-head {
    display: grid;
  }

  .mode-actions {
    justify-content: start;
  }

  .roundtable-member-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .roundtable-member-option.writer,
  .roundtable-context-options,
  .roundtable-member-add,
  .roundtable-material-toggle {
    grid-column: 1 / -1;
  }

  .roundtable-context-options {
    grid-template-columns: 1fr;
  }

  .roundtable-context-head {
    display: grid;
  }

  .roundtable-section-label {
    display: grid;
    justify-items: start;
  }

  .roundtable-section-label small {
    text-align: left;
  }

  .manuscript-paper {
    width: min(calc(100vw - 22px), 430px);
    padding: 16px 14px 42px;
  }

  .paper-grip {
    min-width: 164px;
    max-width: calc(100% - 24px);
    gap: 8px;
    padding: 9px 12px;
  }

  .paper-grip-copy {
    font-size: 11px;
  }

  .roundtable-line {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 8px;
    padding: 0 8px;
  }

  .roundtable-line.user {
    grid-template-columns: minmax(0, 1fr) 42px;
  }

  .roundtable-avatar {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    font-size: 14px;
  }

  .roundtable-speech {
    max-width: min(76vw, 290px);
  }

  .roundtable-discussion {
    padding-top: 56px;
  }
}

/* Clean writing-desk pass for the feature-rich roundtable branch. */
.roundtable-mode-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  max-width: 640px;
  margin: 0 auto 8px;
}

.mode-kicker {
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.9px;
}

.roundtable-mode-head strong {
  color: var(--text);
  font-size: 17px;
}

.mode-actions {
  gap: 5px;
}

.mode-actions button {
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid rgba(218, 214, 205, 0.86);
  border-radius: 9px;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.58);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.mode-actions button[data-command="roundtable-start"] {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

.roundtable-member-panel {
  gap: 7px;
  max-width: 640px;
  margin: 0 auto 8px;
  padding: 8px;
  border-color: var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 32px rgba(39, 35, 28, 0.05);
}

.roundtable-mode .roundtable-member-panel {
  max-height: min(58vh, calc(100dvh - var(--composer-height) - 176px));
  overflow-y: auto;
  align-content: start;
  -webkit-overflow-scrolling: touch;
}

.roundtable-mode .roundtable-member-option {
  grid-template-columns: minmax(0, 1fr) 34px;
  min-height: 44px;
  padding: 7px;
}

.roundtable-mode .roundtable-member-main {
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 0 7px;
}

.roundtable-mode .roundtable-member-main span {
  width: 22px;
  height: 22px;
  font-size: 12px;
}

.roundtable-mode .roundtable-member-main b {
  font-size: 13px;
}

.roundtable-mode .roundtable-member-main small {
  font-size: 10px;
}

.roundtable-mode .roundtable-member-edit {
  width: 30px;
  height: 30px;
  font-size: 12px;
}

.roundtable-material-toggle {
  grid-column: 1 / -1;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 800;
}

.roundtable-material-toggle.active {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

.roundtable-member-option,
.roundtable-member-add {
  border-color: var(--line);
  border-radius: 12px;
  background: #fff;
}

.roundtable-member-edit {
  border-color: var(--line);
  border-radius: 9px;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.72);
}

.roundtable-member-main span {
  border-color: var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.roundtable-member-option.selected {
  border-color: var(--text);
  background: var(--surface-selected);
}

.roundtable-member-option.selected .roundtable-member-main span {
  border-color: var(--text);
  background: var(--text);
}

.roundtable-context-options {
  border-color: var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
}

.roundtable-context-options input[type="checkbox"] {
  accent-color: var(--accent);
}

.roundtable-context-number input,
.roundtable-context-topic input {
  border-color: var(--line);
  border-radius: 9px;
}

.roundtable-context-button,
.roundtable-cycle-button {
  border-color: var(--line);
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.72);
}

.roundtable-context-button.active,
.roundtable-cycle-button.is-ending {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

.roundtable-section-label {
  max-width: 640px;
  margin: 0 auto 6px;
  color: var(--muted);
}

.roundtable-section-label span {
  color: var(--text);
  font-size: 13px;
}

.roundtable-section-label small {
  display: none;
  color: var(--muted);
  opacity: 0.72;
}

.roundtable-section-label-chat {
  display: none;
}

.manuscript-desk {
  max-width: 640px;
  margin: 0 auto -20px;
  padding: 0;
}

.manuscript-paper {
  width: min(calc(100vw - 28px), 408px);
  min-height: 118px;
  padding: 14px 16px 34px;
  border-color: var(--surface-paper-edge);
  border-radius: 0 0 14px 14px;
  background:
    linear-gradient(90deg, rgba(173, 166, 151, 0.18) 1px, transparent 1px) 34px 0 / 1px 100% no-repeat,
    linear-gradient(180deg, #fffefd 0%, var(--surface-paper) 100%);
  box-shadow:
    var(--paper-shadow),
    0 4px 12px rgba(59, 52, 43, 0.035),
    0 1px 0 rgba(255, 255, 255, 0.95) inset;
  transform: rotate(-0.08deg);
  animation: paper-settle 240ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.roundtable-workspace:not([hidden]) .roundtable-mode-head,
.roundtable-workspace:not([hidden]) .roundtable-member-panel,
.roundtable-workspace:not([hidden]) .roundtable-section-label {
  animation: quiet-rise 180ms ease-out both;
}

.roundtable-workspace:not([hidden]) .roundtable-discussion {
  animation: quiet-rise 260ms ease-out 70ms both;
}

.manuscript-paper.paper-peek .paper-scroll-viewport::after,
.manuscript-paper.paper-deep-collapsed .paper-scroll-viewport::after {
  height: 34px;
  margin-top: -34px;
  background: linear-gradient(180deg, rgba(255, 253, 250, 0), rgba(255, 253, 250, 0.97));
}

.paper-new-anchor {
  bottom: 18px;
  border-color: rgba(198, 193, 184, 0.78);
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 18px rgba(53, 48, 39, 0.08);
}

.paper-grip {
  bottom: -16px;
  gap: 6px;
  min-width: 92px;
  padding: 5px 7px;
  border-color: rgba(198, 193, 184, 0.78);
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 8px 18px rgba(53, 48, 39, 0.08);
}

.paper-grip:hover,
.paper-grip:focus-visible {
  box-shadow: 0 12px 22px rgba(53, 48, 39, 0.1);
}

body.paper-dragging .paper-grip {
  box-shadow: 0 14px 26px rgba(53, 48, 39, 0.12);
}

.paper-grip-ribs {
  gap: 2px;
}

.paper-grip-ribs i {
  width: 15px;
  background: rgba(128, 122, 112, 0.7);
}

.paper-grip-copy {
  display: none;
}

.paper-grip-meter {
  min-width: 34px;
  padding: 3px 6px;
  color: #fff;
  background: var(--accent);
  box-shadow: none;
}

.manuscript-paper::before {
  top: -9px;
  width: 70px;
  height: 14px;
  border-color: rgba(210, 208, 201, 0.65);
  background: rgba(245, 244, 240, 0.86);
}

.paper-meta {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 11px;
}

.paper-meta button {
  border-color: var(--line);
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.72);
}

.manuscript-paper p,
.roundtable-writer-snippet {
  color: #24211d;
  font-family: "Iowan Old Style", "Palatino Linotype", "Songti SC", "STSong", serif;
  font-size: 15px;
  line-height: 1.74;
}

.roundtable-discussion {
  gap: 7px;
  max-width: 640px;
  padding: 40px 0 10px;
}

.roundtable-discussion::before {
  top: 10px;
  border: 1px solid rgba(232, 229, 222, 0.72);
  border-radius: 22px 22px 0 0;
  background: rgba(255, 255, 255, 0.44);
  box-shadow: none;
}

.roundtable-empty {
  margin: 0 10px;
  border: 1px solid rgba(221, 215, 204, 0.86);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
}

.roundtable-line.user .roundtable-speech {
  color: var(--text);
  border-color: rgba(213, 218, 215, 0.92);
  background: var(--surface-user);
}

.roundtable-speech {
  padding: 9px 11px;
  border-color: rgba(228, 224, 217, 0.95);
  color: var(--text);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 3px 10px rgba(44, 39, 33, 0.028);
  line-height: 1.46;
}

.roundtable-avatar {
  box-shadow: none;
}

.roundtable-avatar {
  overflow: hidden;
  border: 0;
}

.roundtable-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.roundtable-avatar.avatar-button {
  cursor: pointer;
}

.roundtable-avatar.avatar-button:hover,
.roundtable-avatar.avatar-button:focus-visible {
  box-shadow: 0 0 0 3px rgba(34, 34, 34, 0.08);
  transform: translateY(-1px);
}

.roundtable-avatar.tone-user {
  background: #8c97a3;
}

.roundtable-avatar.tone-setting {
  background: #a28058;
}

.roundtable-avatar.tone-plot {
  background: #6d768f;
}

.roundtable-avatar.tone-review {
  background: #7f8f89;
}

.roundtable-avatar.tone-style {
  background: #987683;
}

.roundtable-avatar.tone-writer {
  background: #3b352d;
}

.roundtable-role-badge.tone-user {
  color: #566576;
  background: rgba(140, 151, 163, 0.16);
}

.roundtable-role-badge.tone-setting {
  color: #876642;
  background: rgba(162, 128, 88, 0.16);
}

.roundtable-role-badge.tone-plot {
  color: #5a6279;
  background: rgba(109, 118, 143, 0.14);
}

.roundtable-role-badge.tone-review {
  color: #61736e;
  background: rgba(127, 143, 137, 0.15);
}

.roundtable-role-badge.tone-style {
  color: #7d626d;
  background: rgba(152, 118, 131, 0.14);
}

.roundtable-role-badge.tone-writer {
  color: #584f43;
  background: rgba(90, 74, 53, 0.12);
}

.roundtable-writer-card {
  border-color: rgba(228, 224, 217, 0.95);
  background:
    linear-gradient(180deg, rgba(255, 254, 250, 0.98), rgba(252, 249, 243, 0.95)),
    linear-gradient(90deg, rgba(173, 166, 151, 0.14) 1px, transparent 1px) 34px 0 / 1px 100% no-repeat;
  box-shadow: 0 5px 14px rgba(54, 46, 36, 0.04);
}

.roundtable-decision {
  font-weight: 700;
}

.roundtable-decision.adopted,
.roundtable-decision.approved {
  color: #48665b;
  background: rgba(114, 139, 128, 0.14);
}

.roundtable-decision.ignored {
  color: #706b62;
  background: rgba(142, 137, 127, 0.13);
}

.roundtable-decision.revision {
  color: #816244;
  background: rgba(161, 128, 88, 0.14);
}

@keyframes paper-settle {
  from {
    opacity: 0;
    transform: translateY(10px) rotate(-0.08deg) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotate(-0.08deg) scale(1);
  }
}

@keyframes quiet-rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes menu-float-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(8px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

@keyframes model-picker-rise {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes send-ready {
  0% {
    scale: 0.88;
  }

  62% {
    scale: 1.08;
  }

  100% {
    scale: 1;
  }
}

@keyframes breathing-stop {
  0%,
  100% {
    box-shadow: 0 8px 18px rgba(157, 75, 75, 0.16);
  }

  50% {
    box-shadow: 0 10px 28px rgba(157, 75, 75, 0.32);
  }
}

@keyframes member-panel-open {
  from {
    opacity: 0;
    transform: translateY(-6px) scaleY(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scaleY(1);
  }
}

@keyframes member-sheet-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes member-select {
  0% {
    scale: 0.98;
  }

  60% {
    scale: 1.025;
  }

  100% {
    scale: 1;
  }
}

@keyframes speaker-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(34, 34, 34, 0.18);
  }

  50% {
    box-shadow: 0 0 0 7px rgba(34, 34, 34, 0);
  }
}

@keyframes soft-unfold {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes roundtable-line-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes mention-glow {
  0% {
    box-shadow: 0 0 0 0 rgba(141, 107, 49, 0.22);
  }

  72% {
    box-shadow: 0 0 0 8px rgba(141, 107, 49, 0);
  }

  100% {
    box-shadow: none;
  }
}

@keyframes writer-card-land {
  from {
    opacity: 0;
    transform: translateY(10px) rotate(-0.18deg);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
  }
}

@media (max-width: 420px) {
  .roundtable-mode-head {
    gap: 8px;
    margin-bottom: 6px;
  }

  .mode-actions {
    justify-content: start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .mode-actions::-webkit-scrollbar {
    display: none;
  }

  .roundtable-section-label.roundtable-section-label-chat {
    display: none;
  }

  .manuscript-paper {
    width: min(calc(100vw - 22px), 430px);
    min-height: 132px;
    padding: 13px 14px 32px;
  }

  .paper-grip {
    min-width: 82px;
    max-width: calc(100% - 24px);
    gap: 6px;
    padding: 5px 7px;
  }

  .roundtable-line {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 7px;
    padding: 0 6px;
  }

  .roundtable-line.user {
    grid-template-columns: minmax(0, 1fr) 34px;
  }

  .roundtable-avatar {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    font-size: 12px;
  }

  .roundtable-speech {
    max-width: min(76vw, 300px);
    padding: 7px 9px;
  }

  .roundtable-discussion {
    padding-top: 36px;
  }
}

/* Mobile roundtable cleanup: keep the manuscript calm and stop controls from colliding. */
.roundtable-workspace {
  position: relative;
  padding: 0 12px calc(var(--composer-height) + 82px);
}

.roundtable-mode .roundtable-member-panel:not([hidden]) {
  position: absolute;
  right: 0;
  bottom: calc(100% + 8px);
  left: 0;
  z-index: 3;
  width: auto;
  max-width: none;
  margin: 0 auto;
  max-height: min(48dvh, calc(100dvh - var(--composer-height) - 126px));
  padding: 12px 14px 14px;
  border-radius: 24px 24px 18px 18px;
  box-shadow:
    0 -18px 46px rgba(38, 34, 28, 0.16),
    0 1px 0 rgba(255, 255, 255, 0.9) inset;
  transform-origin: 50% 100%;
  animation: member-sheet-up 220ms cubic-bezier(0.16, 1, 0.3, 1) both;
  backdrop-filter: blur(18px);
}

.roundtable-mode .composer > .roundtable-member-panel:not([hidden]) {
  position: absolute;
  top: auto;
  right: 0;
  bottom: calc(100% + 8px);
  left: 0;
  z-index: 24;
  width: auto;
  max-width: none;
  margin: 0;
  transform-origin: 50% 100%;
}

.roundtable-member-sheet-title {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 28px;
  padding: 0 4px 4px;
}

.roundtable-member-sheet-title span {
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
}

.roundtable-member-sheet-title small {
  color: var(--muted);
  font-size: 11px;
}

.roundtable-mode .roundtable-section-label:not(.roundtable-section-label-chat) {
  display: none;
}

.roundtable-mode-head {
  grid-template-columns: 1fr;
  gap: 8px;
  max-width: 640px;
  margin: 0 auto 14px;
}

.roundtable-mode-head > div:first-child {
  min-width: 0;
}

.mode-kicker {
  display: none;
}

.roundtable-mode-head strong {
  display: block;
  overflow: hidden;
  font-size: 20px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mode-actions {
  width: 100%;
  justify-content: flex-start;
  overflow-x: auto;
  flex-wrap: nowrap;
  padding: 1px 2px 5px;
  scrollbar-width: none;
}

.mode-actions::-webkit-scrollbar {
  display: none;
}

.mode-actions button {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  font-size: 13px;
}

.manuscript-desk {
  position: sticky;
  top: 0;
  z-index: 4;
  margin: 0 auto calc(-1 * min(190px, calc(var(--paper-body-height, 278px) * 0.46)));
  pointer-events: none;
}

.manuscript-paper {
  pointer-events: auto;
}

.manuscript-paper {
  width: min(calc(100vw - 28px), 460px);
  min-height: 128px;
  padding: 13px 14px 38px;
  border-radius: 0 0 16px 16px;
  box-shadow:
    0 16px 34px rgba(52, 44, 33, 0.075),
    0 1px 0 rgba(255, 255, 255, 0.95) inset;
}

.paper-meta {
  min-width: 0;
  margin-bottom: 9px;
}

.paper-meta span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.paper-scroll-viewport {
  min-height: 88px;
  height: var(--paper-body-height, 278px);
  max-height: none;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

.manuscript-paper.paper-deep-collapsed {
  min-height: 0;
  padding-top: 8px;
  padding-bottom: 24px;
}

.manuscript-paper.paper-deep-collapsed .paper-meta {
  height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
}

.manuscript-paper.paper-deep-collapsed .paper-scroll-viewport {
  min-height: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
}

.paper-grip {
  bottom: -19px;
  min-width: 150px;
  min-height: 38px;
  padding: 7px 10px;
  touch-action: none;
}

.paper-grip-copy {
  display: inline;
  max-width: 76px;
  color: var(--text-soft);
  font-size: 11px;
}

.paper-grip-meter {
  min-width: 40px;
}

.roundtable-discussion {
  padding-top: clamp(130px, calc(var(--paper-body-height, 278px) * 0.58), 250px);
}

.roundtable-discussion::before {
  top: 0;
  left: 0;
  right: 0;
  border-radius: 18px;
}

.roundtable-bubble-meta {
  min-height: 18px;
  line-height: 1.2;
}

.roundtable-speech {
  max-width: min(78vw, 430px);
}

.roundtable-line.failed .roundtable-speech {
  color: #7f4b3a;
  border-color: rgba(173, 93, 70, 0.26);
  background: rgba(255, 244, 239, 0.9);
}

.roundtable-mode .top-actions button[data-command="open-history"] {
  display: none;
}

@media (max-width: 420px) {
  .roundtable-workspace {
    padding: 0 8px calc(var(--composer-height) + 78px);
  }

  .roundtable-mode .roundtable-member-panel:not([hidden]) {
    right: 0;
    bottom: calc(100% + 8px);
    left: 0;
    max-height: min(50dvh, calc(100dvh - var(--composer-height) - 104px));
    padding: 12px 12px 14px;
  }

  .roundtable-mode-head {
    margin-bottom: 12px;
  }

  .roundtable-mode-head strong {
    font-size: 19px;
  }

  .mode-actions {
    margin: 0 -2px;
  }

  .mode-actions button {
    min-height: 32px;
    padding: 0 12px;
    font-size: 12px;
  }

  .manuscript-desk {
    margin-bottom: calc(-1 * min(176px, calc(var(--paper-body-height, 278px) * 0.44)));
  }

  .manuscript-paper {
    width: min(calc(100vw - 18px), 430px);
    min-height: 124px;
  }

  .paper-grip {
    min-width: 138px;
  }

  .roundtable-discussion {
    padding-top: clamp(122px, calc(var(--paper-body-height, 278px) * 0.56), 230px);
  }
}

/* Keep manuscript dragging continuous: the body height must be the only moving size. */
.roundtable-mode .manuscript-paper {
  min-height: 0;
  padding-top: var(--paper-chrome-top, 13px);
  padding-bottom: var(--paper-chrome-bottom, 38px);
  transition:
    padding 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.roundtable-mode .paper-meta {
  max-height: var(--paper-meta-height, 28px);
  margin-bottom: var(--paper-meta-margin, 9px);
  overflow: hidden;
  opacity: var(--paper-meta-opacity, 1);
  transition:
    max-height 140ms ease,
    margin 140ms ease,
    opacity 120ms ease;
}

.roundtable-mode .paper-scroll-viewport {
  min-height: 0;
  height: var(--paper-body-height, 278px);
  max-height: none;
  transition:
    height 160ms ease,
    mask-image 160ms ease,
    opacity 120ms ease;
}

body.roundtable-mode.paper-dragging .manuscript-paper,
body.roundtable-mode.paper-dragging .paper-meta,
body.roundtable-mode.paper-dragging .paper-scroll-viewport {
  transition: none;
}

.roundtable-mode .manuscript-paper.paper-deep-collapsed {
  min-height: 0;
  padding-top: 6px;
  padding-bottom: 18px;
}

.roundtable-mode .manuscript-paper.paper-deep-collapsed .paper-meta {
  max-height: 0;
  height: auto;
  margin: 0;
  overflow: hidden;
  opacity: 0;
}

.roundtable-mode .manuscript-paper.paper-deep-collapsed .paper-scroll-viewport {
  min-height: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
}