/**
 * 星河 AI V2 — 主页样式（对齐 xhai.tv 生产首页）
 */

.home-main {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.app-topbar {
  flex-shrink: 0;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 0 20px;
  background: transparent;
}

.app-topbar-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-home-chat-history,
.btn-chat-history-top,
.btn-go-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.92);
  font-size: 14px;
  transition: background 0.18s, border-color 0.18s;
}

.btn-go-home {
  width: 38px;
  padding: 0;
}

.btn-home-chat-history:hover,
.btn-chat-history-top:hover,
.btn-go-home:hover {
  background: rgba(124, 58, 237, 0.14);
  border-color: rgba(124, 58, 237, 0.35);
}

.dashboard-stage {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.home-content-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 0;
  padding: 0 32px 24px;
  box-sizing: border-box;
  --home-content-width: min(780px, 100%);
}

.hero-welcome {
  width: 100%;
  max-width: var(--home-content-width);
  text-align: center;
  flex-shrink: 0;
  margin-left: auto;
  margin-right: auto;
}

.hero-welcome .hello {
  font-size: clamp(2rem, 4.2vw, 2.625rem);
  font-weight: 900;
  color: #ffffff;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
  line-height: 1.15;
  white-space: nowrap;
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.8);
}

.hero-welcome .sub {
  font-size: 1.05rem;
  color: var(--text-subtle);
  font-weight: 400;
  line-height: 1.6;
  max-width: 36em;
  margin-left: auto;
  margin-right: auto;
}

.composer-anchor {
  width: 100%;
  max-width: var(--home-content-width);
  margin: 5vh auto 0;
  flex-shrink: 0;
}

.composer-wrap.dashboard-mode {
  width: 100%;
}

/* =========================================================
   Composer 3-layer shell (Dreamina overlay model)
   1) .composer-media-overlay  — absolute, out of flow
   2) .composer-input-layer    — textarea, fixed layout
   3) .composer-toolbar-layer  — tools / send

   Attachment host (new):
     overlay > stack > card
             > add
   ========================================================= */

.chat-input-container,
.chat-input-container.composer-shell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 20px;
  min-height: 148px;
  border-radius: 26px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: none;
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  overflow: visible;
}

.chat-input-container:focus-within {
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 0 24px rgba(123, 97, 255, 0.12);
}

/* Layer 1 — media overlay: zero document-flow footprint */
.composer-media-overlay {
  --composer-media-w: 72px;
  --composer-media-h: 96px;
  position: absolute;
  left: 20px;
  top: 18px;
  z-index: 6;
  width: 0;
  height: 0;
  overflow: visible;
  pointer-events: none;
}

.composer-media-overlay .composer-media-stack,
.composer-media-overlay .composer-media-add,
.composer-media-overlay .composer-media-card,
.composer-media-overlay .composer-media-card-remove,
.composer-media-overlay .composer-media-card-retry {
  pointer-events: auto;
}

/* Layer 2 — input: never depends on media size */
.composer-input-layer,
.input-top-row {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  min-height: 96px;
  overflow: visible;
}

.composer-input-layer .input-text-area,
.input-text-area {
  position: relative;
  z-index: 1;
  width: 100%;
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.composer-input-layer textarea,
.input-top-row textarea,
#userInput {
  /* Height must stay independent of attachment stack expand/collapse */
  box-sizing: border-box;
}

/*
  Input-layer clearance only (do not touch overlay/stack).
  Empty (+ 72×72) and has-media (stack ~90×80) both need left pad
  so placeholder/text never sits under the floating attach control.
*/
.composer-media-overlay:not(.has-media-items) ~ .composer-input-layer .input-text-area textarea,
.composer-media-overlay:not(.has-media-items) ~ .input-top-row .input-text-area textarea,
.composer-shell:has(> .composer-media-overlay:not(.has-media-items)) .input-text-area textarea {
  padding-left: 88px; /* media tile width + gap */
}

.composer-media-overlay.has-media-items ~ .composer-input-layer .input-text-area textarea,
.composer-media-overlay.has-media-items ~ .input-top-row .input-text-area textarea,
.composer-shell:has(> .composer-media-overlay.has-media-items) .input-text-area textarea {
  padding-left: 104px; /* collapsed stack footprint */
}

/* Layer 3 — toolbar */
.composer-toolbar-layer,
.input-bottom-row {
  position: relative;
  z-index: 2;
}

.composer-preview-strip {
  display: none !important;
}

.composer-media-stack[hidden] {
  display: none !important;
}

/* ---- + tile (same rect as media card) ---- */
.composer-media-add {
  width: var(--composer-media-w, 72px);
  height: var(--composer-media-h, 96px);
  min-width: var(--composer-media-w, 72px);
  min-height: var(--composer-media-h, 96px);
  max-width: var(--composer-media-w, 72px);
  max-height: var(--composer-media-h, 96px);
  border: 1px dashed rgba(255, 255, 255, 0.32);
  border-radius: 12px;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  box-shadow: none;
  flex-shrink: 0;
  cursor: pointer;
  /* Do NOT animate width/height/radius — avoids circle→rect morph on expand */
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease !important;
}

.composer-media-add:hover {
  border-color: rgba(167, 139, 250, 0.55);
  background: rgba(124, 58, 237, 0.12);
  color: #fff;
}

.composer-media-add-plus {
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1;
}

/* Empty: same 56×72 dashed rectangle as cards */
.composer-media-overlay:not(.has-media-items) > .composer-media-add {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--composer-media-w, 56px);
  height: var(--composer-media-h, 72px);
  min-width: var(--composer-media-w, 56px);
  min-height: var(--composer-media-h, 72px);
  max-width: var(--composer-media-w, 56px);
  max-height: var(--composer-media-h, 72px);
  border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.32);
  background: transparent;
  box-shadow: none;
  transform: rotate(-6deg);
}

/* ---- Card base (same rect as + tile) ---- */
.composer-media-card {
  position: relative;
  display: block;
  width: var(--composer-media-w, 56px);
  height: var(--composer-media-h, 72px);
  min-width: var(--composer-media-w, 56px);
  min-height: var(--composer-media-h, 72px);
  max-width: var(--composer-media-w, 56px);
  max-height: var(--composer-media-h, 72px);
  padding: 0;
  margin: 0;
  border-radius: 10px;
  box-sizing: border-box;
  flex-shrink: 0;
  overflow: visible;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(15, 23, 42, 0.55);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.28);
  transform-origin: 50% 80%;
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.composer-media-card.is-failed {
  border-color: rgba(248, 113, 113, 0.55);
}

.composer-media-card-thumb {
  position: relative;
  width: 100%;
  height: 100%;
  margin: 0;
  border-radius: 10px;
  overflow: hidden;
}

.composer-media-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.composer-media-card-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #0b1220;
  pointer-events: none;
}

.composer-media-card.is-image,
.composer-media-card.is-video {
  cursor: zoom-in;
}

.composer-media-card.is-uploading {
  cursor: progress;
}

.composer-media-card.is-uploading .composer-media-play-badge {
  opacity: 0;
}

.composer-media-upload-spinner {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 28px;
  height: 28px;
  margin: 0;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.28);
  border-top-color: #fff;
  transform: translate(-50%, -50%);
  animation: composer-media-spin 0.75s linear infinite;
  pointer-events: none;
  z-index: 3;
  box-sizing: border-box;
}

.composer-media-duration {
  position: absolute;
  left: 6px;
  bottom: 6px;
  z-index: 3;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(15, 23, 42, 0.72);
  color: #fff;
  font-size: 10px;
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

@keyframes composer-media-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.composer-media-play-badge {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 28px;
  height: 28px;
  margin: 0;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.composer-media-play-badge::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 6px 0 6px 10px;
  border-color: transparent transparent transparent #fff;
}

.composer-media-kind-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(30, 41, 59, 0.9);
}

.composer-media-card-remove,
.composer-media-card-retry {
  border: none;
  background: rgba(15, 23, 42, 0.72);
  color: #fff;
  cursor: pointer;
}

.composer-media-card-remove {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  min-width: 18px;
  min-height: 18px;
  padding: 0;
  border-radius: 999px;
  line-height: 18px;
  font-size: 12px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
}

.composer-media-card-retry {
  display: none;
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 4px;
  margin: 0;
  z-index: 2;
  border-radius: 6px;
  font-size: 10px;
  padding: 2px 4px;
}

.composer-media-card.is-failed .composer-media-card-retry {
  display: block;
}

/* Kill leftover legacy media-list / media-scroll hosts in home shell */
.composer-shell .composer-media-rail,
.composer-shell .composer-media-scroll,
.composer-shell .composer-media-list,
.composer-shell #homeComposerMediaList {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  overflow: hidden !important;
  pointer-events: none !important;
}

/* =========================================================
   Two-state stack — driven only by data-state
   .composer-media-stack[data-state="collapsed|expanded"]
   ========================================================= */

/* COLLAPSED: 90×80 absolute stack, cards absolute + fan rotate */
/* COLLAPSED: footprint fits 56×72 cards */
.composer-media-stack[data-state="collapsed"] {
  position: absolute;
  left: 0;
  top: 0;
  width: 96px;
  height: 112px;
  display: block;
  overflow: visible;
}

.composer-media-stack[data-state="collapsed"] .composer-media-card {
  position: absolute;
  left: 12px;
  top: 12px;
  overflow: hidden;
}

.composer-media-stack[data-state="collapsed"] .composer-media-card:nth-last-child(3) {
  transform: rotate(-8deg);
}

.composer-media-stack[data-state="collapsed"] .composer-media-card:nth-last-child(2) {
  transform: rotate(-3deg);
}

.composer-media-stack[data-state="collapsed"] .composer-media-card:nth-last-child(1) {
  transform: rotate(5deg);
}

.composer-media-stack[data-state="collapsed"] .composer-media-card.is-stack-top {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.36);
}

.composer-media-stack[data-state="collapsed"] .composer-media-card-remove {
  opacity: 0;
  pointer-events: none;
}

.composer-media-stack.has-media-items[data-state="collapsed"] ~ .composer-media-add {
  position: absolute;
  left: 68px;
  top: 76px;
  z-index: 12;
  width: 28px !important;
  height: 28px !important;
  min-width: 28px !important;
  min-height: 28px !important;
  max-width: 28px !important;
  max-height: 28px !important;
  border-radius: 999px !important;
  border: 1px solid rgba(255, 255, 255, 0.28) !important;
  background: rgba(15, 23, 42, 0.92) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  transform: none !important;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease !important;
}

.composer-media-stack.has-media-items[data-state="collapsed"] ~ .composer-media-add .composer-media-add-plus {
  font-size: 0.95rem;
}

/* EXPANDED: flex row + gap 8px; cards relative; remove visible; + last */
.composer-media-overlay:has(> .composer-media-stack[data-state="expanded"]) {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 8px;
  width: 0;
  height: 0;
}

.composer-media-stack[data-state="expanded"] {
  position: relative;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 8px;
  width: auto;
  height: auto;
  overflow: visible;
}

.composer-media-stack[data-state="expanded"] .composer-media-card {
  position: relative;
  left: auto;
  top: auto;
  overflow: visible;
  transform: none;
  background: rgba(15, 23, 42, 0.85);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.24);
}

.composer-media-stack[data-state="expanded"] .composer-media-card:hover {
  z-index: 20;
  transform: translateY(-8px) scale(1.08);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
}

.composer-media-stack[data-state="expanded"] .composer-media-card-remove {
  opacity: 1;
  pointer-events: auto;
}

.composer-media-stack[data-state="expanded"] ~ .composer-media-add {
  position: relative;
  left: auto;
  top: auto;
  z-index: 12;
  width: var(--composer-media-w, 72px) !important;
  height: var(--composer-media-h, 96px) !important;
  min-width: var(--composer-media-w, 72px) !important;
  min-height: var(--composer-media-h, 96px) !important;
  max-width: var(--composer-media-w, 72px) !important;
  max-height: var(--composer-media-h, 96px) !important;
  border-radius: 12px !important;
  border: 1px dashed rgba(255, 255, 255, 0.32) !important;
  background: transparent !important;
  box-shadow: none !important;
  transform: none !important;
  flex-shrink: 0;
  /* Snap to rectangle — no circle morph */
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease !important;
}

.composer-media-stack[data-state="expanded"] ~ .composer-media-add .composer-media-add-plus {
  font-size: 1.5rem;
}

.home-composer-status {
  margin-top: 6px;
  font-size: 12px;
  color: rgba(196, 181, 253, 0.9);
}

.home-composer-status.is-error {
  color: #fca5a5;
}

.home-composer-lightbox {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.home-composer-lightbox[hidden] {
  display: none !important;
}

.home-composer-lightbox-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  padding: 0;
  margin: 0;
  background: rgba(5, 8, 16, 0.78);
  cursor: zoom-out;
}

.home-composer-lightbox-dialog {
  position: relative;
  z-index: 1;
  max-width: min(92vw, 960px);
  max-height: min(88vh, 900px);
}

.home-composer-lightbox-image {
  display: block;
  max-width: 92vw;
  max-height: 88vh;
  width: auto;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  background: rgba(15, 23, 42, 0.85);
  cursor: zoom-in;
  transition: transform 0.2s ease;
}

.home-composer-lightbox-image.is-zoomed,
.home-composer-lightbox.is-zoomed .home-composer-lightbox-image {
  max-width: none;
  max-height: none;
  width: auto;
  height: auto;
  transform: scale(1.55);
  cursor: zoom-out;
}

.home-composer-lightbox-video {
  display: block;
  max-width: min(92vw, 960px);
  max-height: min(88vh, 900px);
  width: auto;
  height: auto;
  border-radius: 14px;
  background: #000;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

.home-composer-lightbox-image[hidden],
.home-composer-lightbox-video[hidden] {
  display: none !important;
}

.home-composer-lightbox-close {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.92);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.home-composer-lightbox-close:hover {
  background: rgba(30, 41, 59, 0.98);
}

body.home-composer-lightbox-open {
  overflow: hidden;
}

.input-text-area {
  position: relative;
  z-index: 1;
  width: 100%;
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.input-text-area textarea {
  width: 100%;
  min-height: 96px;
  max-height: 160px;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  color: #fff;
  font-size: 16px;
  line-height: 1.5;
  padding: 6px 0 0;
}

.input-text-area textarea::placeholder {
  color: rgba(156, 163, 175, 0.72);
}

.input-bottom-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
}

.input-toolbar {
  flex: 1;
  min-width: 0;
}

.toolbar-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 100px;
  background: transparent;
  color: var(--text-subtle);
  font-size: 13px;
  line-height: 1.2;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
}

.toolbar-pill:hover {
  background: rgba(139, 92, 246, 0.22);
  border-color: rgba(168, 85, 247, 0.45);
  color: #ffffff;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.2);
}

.toolbar-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

/*
  Home model menu — V2 does not load main.css; without fixed positioning the menu
  stays in document flow below the fold and looks like the pill "does nothing".
*/
#homeModelPresetMenu.model-preset-menu {
  position: fixed;
  z-index: 9999;
  min-width: 220px;
  padding: 8px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(15, 23, 42, 0.92);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}

#homeModelPresetMenu.model-preset-menu.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

#homeModelPresetMenu.model-preset-menu button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  border: 0;
  background: transparent;
  color: #fff;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  font: inherit;
}

#homeModelPresetMenu.model-preset-menu button:hover {
  background: rgba(255, 255, 255, 0.08);
}

#homeModelPresetMenu.model-preset-menu .model-preset-check {
  display: none;
}

#homeModelPresetMenu.model-preset-menu button.selected .model-preset-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #2563eb;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
}

.composer-action-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.composer-voice-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: rgba(255, 255, 255, 0.88);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.composer-voice-btn:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.composer-voice-svg {
  width: 24px;
  height: 24px;
  display: block;
  filter: drop-shadow(0 0 8px rgba(167, 139, 250, 0.42));
  transition: filter var(--transition-fast);
}

.composer-voice-btn:hover .composer-voice-svg {
  filter: drop-shadow(0 0 12px rgba(167, 139, 250, 0.62));
}

.btn-send-agent {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed, #2563eb);
  color: #ffffff;
  font-size: 1.05rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 28px rgba(139, 92, 246, 0.45),
    0 8px 32px rgba(0, 0, 0, 0.35);
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
}

.btn-send-agent:hover {
  background: linear-gradient(135deg, #8b5cf6, #3b82f6);
  transform: translateY(-1px);
  box-shadow:
    0 0 36px rgba(139, 92, 246, 0.55),
    0 8px 36px rgba(0, 0, 0, 0.4);
}

.home-feature-grid {
  width: 100%;
  max-width: var(--home-content-width);
  margin: 28px auto 0;
  padding-bottom: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  align-items: stretch;
}

.home-feature-grid .feature-banner-card:nth-child(5) {
  grid-column: 2 / span 2;
  justify-self: center;
  width: 100%;
  max-width: 100%;
}

.feature-banner-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  width: 100%;
  min-width: 0;
  height: 76px;
  padding: 14px 20px;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.24);
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
}

.feature-banner-card:hover {
  transform: translateY(-3px);
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.15);
}

.feature-banner-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #a855f7, #6366f1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(168, 85, 247, 0.3);
}

.feature-text-wrap {
  display: flex;
  flex-direction: column;
  text-align: left;
  overflow: hidden;
  min-width: 0;
}

.feature-banner-title {
  font-size: 13.5px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.feature-banner-desc {
  font-size: 11px;
  color: rgba(230, 226, 255, 0.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 1100px) {
  .home-feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-feature-grid .feature-banner-card:nth-child(5) {
    grid-column: 1 / -1;
    max-width: 420px;
  }

  .hero-welcome .hello {
    white-space: normal;
  }
}

@media (max-width: 760px) {
  .home-content-wrapper {
    padding: 0 16px;
    transform: none;
  }

  .hero-welcome .hello {
    font-size: 1.75rem;
  }

  .home-feature-grid {
    grid-template-columns: 1fr;
  }

  .home-feature-grid .feature-banner-card:nth-child(5) {
    grid-column: auto;
    max-width: none;
  }

  .btn-home-chat-history span,
  .btn-chat-history-top span {
    display: none;
  }

  .composer-media-overlay {
    --composer-media-w: 64px;
    --composer-media-h: 86px;
  }

  .composer-anchor {
    margin-top: 6vh;
  }
}

/* =========================================================
   Home composer — EXACT sketch (two layers)
   Layer1 .composer-body-row:  [图片上传区] | [文本输入区]  ← siblings
   Layer2 .input-bottom-row:   [模型] .............. [mic][send]
   One outer shell; zones never squeeze each other.
   ========================================================= */

.composer-anchor.is-home-active .composer-wrap.dashboard-mode .chat-input-container,
.composer-anchor.is-home-active .composer-wrap.dashboard-mode .chat-input-container.composer-shell,
.home-content-wrapper .composer-anchor.is-home-active .chat-input-container {
  --tile-w: 72px;
  --tile-h: 96px;
  --media-col-max: 360px;
  --text-min-w: 160px;
  --text-min-h: 96px;
  --toolbar-h: 52px;
  --shell-pad: 16px;
  --layer-gap: 12px;
  --col-gap: 12px;
  --shell-min-h: 192px;
  --shell-max-h: min(44vh, 360px);
  --home-composer-radius: 28px;

  display: flex !important;
  flex-direction: column !important;
  flex-wrap: nowrap !important;
  gap: var(--layer-gap) !important;
  min-height: var(--shell-min-h) !important;
  max-height: var(--shell-max-h) !important;
  /* 素材展开盖字时允许横向溢出画到文本上；圆角裁切仍由 border-radius 视觉承担 */
  overflow: visible !important;
  box-sizing: border-box !important;
  padding: var(--shell-pad) !important;
  border-radius: var(--home-composer-radius) !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  background: transparent !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  /* kill any leftover grid from prior experiments */
  grid-template-columns: unset !important;
  grid-template-rows: unset !important;
  grid-template-areas: unset !important;
}

.composer-anchor.is-home-active .composer-wrap.dashboard-mode .chat-input-container:focus-within,
.home-content-wrapper .composer-anchor.is-home-active .chat-input-container:focus-within {
  border-color: rgba(196, 181, 253, 0.38) !important;
  box-shadow: none !important;
}

/* ========== Layer 1: 附件 | 文本（同级，互不挤压） ========== */
.composer-anchor.is-home-active .composer-body-row,
.composer-anchor.is-home-active .chat-input-container > .composer-body-row {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: stretch !important;
  flex: 1 1 auto !important;
  min-width: 0 !important;
  min-height: var(--tile-h) !important;
  max-height: 100% !important;
  gap: var(--col-gap) !important;
  /* 展开素材盖住文本；勿在此裁切绝对定位轨道 */
  overflow: visible !important;
  position: relative !important;
  z-index: 1 !important;
  box-sizing: border-box !important;
  container-type: inline-size;
  container-name: home-composer-body;
}

/* =========================================================
   素材上传：单一容器 .composer-media-box
   内部轨道 .composer-media-track 容纳全部缩略图 + 加号
   展开/收起/宽度只由容器决定，不改两层骨架
   ========================================================= */

.composer-anchor.is-home-active .composer-body-row > .composer-media-overlay.composer-media-box,
.composer-anchor.is-home-active .composer-media-overlay.composer-media-box,
.composer-anchor.is-home-active .composer-body-row > .composer-media-overlay,
.composer-anchor.is-home-active .composer-media-overlay {
  --composer-media-w: var(--tile-w);
  --composer-media-h: var(--tile-h);
  --media-slot-w: var(--tile-w);
  --media-slot-h: var(--tile-h);
  /* 跟输入框正文行同宽，避免卡在 360 把末图裁半 */
  --media-expand-max: min(920px, 90vw);
  position: relative !important;
  left: auto !important;
  top: auto !important;
  right: auto !important;
  bottom: auto !important;
  flex: 0 0 var(--media-slot-w) !important;
  flex-grow: 0 !important;
  flex-shrink: 0 !important;
  width: var(--media-slot-w) !important;
  min-width: var(--media-slot-w) !important;
  max-width: var(--media-slot-w) !important;
  height: var(--media-slot-h) !important;
  min-height: var(--media-slot-h) !important;
  max-height: var(--media-slot-h) !important;
  display: block !important;
  overflow: hidden !important;
  pointer-events: auto !important;
  z-index: 1 !important;
  box-sizing: border-box !important;
  align-self: flex-start !important;
  grid-area: unset !important;
  border-radius: 12px !important;
  background: transparent !important;
  transition:
    max-width 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    min-width 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    width 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    flex-basis 0.32s cubic-bezier(0.22, 1, 0.36, 1) !important;
}

/* 有素材：流式占位永远折叠宽度；展开不改 flex，只抬 z-index */
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.composer-media-box.has-media-items,
.composer-anchor.is-home-active
  .composer-media-overlay.composer-media-box.has-media-items,
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.has-media-items,
.composer-anchor.is-home-active .composer-media-overlay.has-media-items {
  flex: 0 0 88px !important;
  flex-grow: 0 !important;
  flex-shrink: 0 !important;
  flex-basis: 88px !important;
  width: 88px !important;
  min-width: 88px !important;
  max-width: 88px !important;
  height: var(--media-slot-h) !important;
  min-height: var(--media-slot-h) !important;
  max-height: calc(var(--media-slot-h) + 8px) !important;
  overflow: visible !important;
  z-index: 2 !important;
  transition: none !important;
}

/* 悬停 / .media-expanded：流式宽度不变，仅抬层盖住文本（不挤文本） */
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.composer-media-box.has-media-items.media-expanded,
.composer-anchor.is-home-active
  .composer-media-overlay.composer-media-box.has-media-items.media-expanded,
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.has-media-items.media-expanded,
.composer-anchor.is-home-active .composer-media-overlay.has-media-items.media-expanded,
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.composer-media-box.has-media-items:hover,
.composer-anchor.is-home-active
  .composer-media-overlay.composer-media-box.has-media-items:hover,
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.has-media-items:hover,
.composer-anchor.is-home-active .composer-media-overlay.has-media-items:hover {
  flex: 0 0 88px !important;
  flex-basis: 88px !important;
  width: 88px !important;
  min-width: 88px !important;
  max-width: 88px !important;
  overflow: visible !important;
  z-index: 12 !important;
}

/* 内部轨道 */
.composer-anchor.is-home-active .composer-media-box > .composer-media-track,
.composer-anchor.is-home-active .composer-media-stack.composer-media-track,
.composer-anchor.is-home-active .composer-media-box .composer-media-stack {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  margin: 0 !important;
  padding: 0 !important;
  box-sizing: border-box !important;
  overflow: visible !important;
}

/* 空态：单格加号 */
.composer-anchor.is-home-active .composer-media-box:not(.has-media-items) > .composer-media-track {
  display: flex !important;
  width: var(--media-slot-w) !important;
  min-width: var(--media-slot-w) !important;
  height: var(--media-slot-h) !important;
}

/* 折叠：扑克叠占位 */
.composer-anchor.is-home-active
  .composer-media-box.has-media-items
  > .composer-media-track,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items
  .composer-media-stack[data-state="collapsed"] {
  display: block !important;
  width: 88px !important;
  min-width: 88px !important;
  max-width: 88px !important;
  height: var(--media-slot-h) !important;
  min-height: var(--media-slot-h) !important;
}

/* 展开：轨道绝对定位向右铺开，盖住文本，不改变左侧占位 */
.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  > .composer-media-track,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  > .composer-media-track,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items
  .composer-media-stack[data-state="expanded"] {
  position: absolute !important;
  left: 0 !important;
  top: 0 !important;
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  gap: 8px !important;
  width: max-content !important;
  min-width: calc(var(--tile-w) + 8px + var(--tile-w)) !important;
  /* 优先跟正文行同宽；旧 360 上限会把第 5 张裁成一条 */
  max-width: min(920px, 90vw) !important;
  max-width: min(100cqw, 920px) !important;
  height: var(--media-slot-h) !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  z-index: 12 !important;
  padding-right: 4px !important;
  /* 隐藏滚轮栏；仍可用触控板/滚轮横向滑动 */
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
  /* 轻微遮罩，盖住下方文本 */
  background: linear-gradient(
    90deg,
    rgba(13, 14, 21, 0.55) 0%,
    rgba(13, 14, 21, 0.28) 70%,
    rgba(13, 14, 21, 0) 100%
  ) !important;
  border-radius: 12px !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  > .composer-media-track::-webkit-scrollbar,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  > .composer-media-track::-webkit-scrollbar,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items
  .composer-media-stack[data-state="expanded"]::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

/* 素材区一律不显示滚轮栏 */
.composer-anchor.is-home-active .composer-media-box,
.composer-anchor.is-home-active .composer-media-track,
.composer-anchor.is-home-active .composer-media-stack {
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
}
.composer-anchor.is-home-active .composer-media-box::-webkit-scrollbar,
.composer-anchor.is-home-active .composer-media-track::-webkit-scrollbar,
.composer-anchor.is-home-active .composer-media-stack::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

/* 卡片基础尺寸 */
.composer-anchor.is-home-active .composer-media-track .composer-media-card,
.composer-anchor.is-home-active .composer-media-stack .composer-media-card {
  width: var(--tile-w) !important;
  height: var(--tile-h) !important;
  min-width: var(--tile-w) !important;
  min-height: var(--tile-h) !important;
  max-width: var(--tile-w) !important;
  max-height: var(--tile-h) !important;
  margin: 0 !important;
  overflow: hidden !important;
  border-radius: 10px !important;
  border: 1px solid rgba(255, 255, 255, 0.18) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.32) !important;
  transform-origin: 50% 80% !important;
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    left 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    top 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* 折叠：绝对叠放 + 扇形旋转（即梦） */
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-card {
  position: absolute !important;
  left: 10px !important;
  top: 0 !important;
  flex: none !important;
  z-index: 1 !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-card:nth-last-of-type(3) {
  transform: rotate(-8deg) !important;
  z-index: 1 !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-card:nth-last-of-type(2) {
  transform: rotate(-3deg) !important;
  z-index: 2 !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-card:nth-last-of-type(1),
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-card.is-stack-top {
  transform: rotate(5deg) !important;
  z-index: 3 !important;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4) !important;
}

/* 展开：入流横排 */
.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  .composer-media-card,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  .composer-media-card {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  flex: 0 0 var(--tile-w) !important;
  transform: none !important;
  z-index: auto !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  .composer-media-card:hover,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  .composer-media-card:hover {
  z-index: 8 !important;
  transform: translateY(-4px) scale(1.04) !important;
}

/* 删除按钮：折叠隐藏，展开显示 */
.composer-anchor.is-home-active .composer-media-track .composer-media-card-remove {
  opacity: 0 !important;
  pointer-events: none !important;
  top: 4px !important;
  right: 4px !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  .composer-media-card-remove,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  .composer-media-card-remove {
  opacity: 1 !important;
  pointer-events: auto !important;
}

/* 展开时外层仍保持 88 占位，禁止旧规则把盒子拉宽 */
.composer-anchor.is-home-active
  .composer-body-row
  > .composer-media-overlay.composer-media-box.media-expanded:has(> .composer-media-stack[data-state="expanded"]),
.composer-anchor.is-home-active
  .composer-media-overlay.media-expanded:has(> .composer-media-stack[data-state="expanded"]),
.composer-anchor.is-home-active
  .composer-media-box.media-expanded:has(> .composer-media-track[data-state="expanded"]),
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover:has(> .composer-media-track) {
  flex: 0 0 88px !important;
  width: 88px !important;
  min-width: 88px !important;
  max-width: 88px !important;
  height: var(--media-slot-h) !important;
  min-height: var(--media-slot-h) !important;
  max-height: var(--media-slot-h) !important;
  display: block !important;
  overflow: visible !important;
}

/* 加号通用 */
.composer-anchor.is-home-active
  .composer-body-row
  .composer-media-track
  > .composer-media-add,
.composer-anchor.is-home-active
  .composer-media-box
  .composer-media-track
  > .composer-media-add,
.composer-anchor.is-home-active .composer-media-box .composer-media-add {
  display: inline-flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  align-items: center !important;
  justify-content: center !important;
  margin: 0 !important;
  padding: 0 !important;
  flex-shrink: 0 !important;
  pointer-events: auto !important;
  box-sizing: border-box !important;
}

.composer-anchor.is-home-active .composer-media-box .composer-media-add[hidden],
.composer-anchor.is-home-active .composer-media-box .composer-media-add.is-at-limit {
  display: none !important;
}

/* 空态：大虚线方块 */
.composer-anchor.is-home-active
  .composer-media-box:not(.has-media-items)
  .composer-media-add {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  width: var(--media-slot-w) !important;
  height: var(--media-slot-h) !important;
  min-width: var(--media-slot-w) !important;
  min-height: var(--media-slot-h) !important;
  max-width: var(--media-slot-w) !important;
  max-height: var(--media-slot-h) !important;
  flex: 0 0 var(--media-slot-w) !important;
  border-radius: 12px !important;
  border: 1px dashed rgba(255, 255, 255, 0.32) !important;
  background: transparent !important;
  box-shadow: none !important;
  transform: none !important;
  z-index: 2 !important;
}

/* 折叠：右下角圆形小加号（即梦） */
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-add:not([hidden]):not(.is-at-limit) {
  position: absolute !important;
  left: 58px !important;
  top: 68px !important;
  right: auto !important;
  bottom: auto !important;
  width: 28px !important;
  height: 28px !important;
  min-width: 28px !important;
  min-height: 28px !important;
  max-width: 28px !important;
  max-height: 28px !important;
  flex: none !important;
  border-radius: 999px !important;
  border: 1px solid rgba(255, 255, 255, 0.28) !important;
  background: rgba(15, 23, 42, 0.92) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35) !important;
  transform: none !important;
  z-index: 12 !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items:not(.media-expanded):not(:hover)
  .composer-media-add
  .composer-media-add-plus {
  font-size: 0.95rem !important;
  line-height: 1 !important;
}

/* 展开：末尾大方块加号 */
.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  .composer-media-add:not([hidden]):not(.is-at-limit),
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  .composer-media-add:not([hidden]):not(.is-at-limit) {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  width: var(--tile-w) !important;
  height: var(--tile-h) !important;
  min-width: var(--tile-w) !important;
  min-height: var(--tile-h) !important;
  max-width: var(--tile-w) !important;
  max-height: var(--tile-h) !important;
  flex: 0 0 var(--tile-w) !important;
  border-radius: 12px !important;
  border: 1px dashed rgba(255, 255, 255, 0.32) !important;
  background: rgba(255, 255, 255, 0.06) !important;
  box-shadow: none !important;
  transform: none !important;
  z-index: 2 !important;
}

.composer-anchor.is-home-active
  .composer-media-box.has-media-items.media-expanded
  .composer-media-add
  .composer-media-add-plus,
.composer-anchor.is-home-active
  .composer-media-box.has-media-items:hover
  .composer-media-add
  .composer-media-add-plus {
  font-size: 1.5rem !important;
  line-height: 1 !important;
}

/* 文本输入区 — 右，同级；仅本区滚动 */
.composer-anchor.is-home-active .composer-body-row > .input-top-row,
.composer-anchor.is-home-active .composer-body-row > .composer-input-layer {
  flex: 1 1 auto !important;
  flex-shrink: 1 !important;
  min-width: var(--text-min-w) !important;
  min-height: var(--text-min-h) !important;
  width: auto !important;
  max-width: none !important;
  height: auto !important;
  max-height: 100% !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden !important;
  position: relative !important;
  z-index: 1 !important;
  grid-area: unset !important;
}

.composer-anchor.is-home-active .composer-body-row .input-text-area {
  flex: 1 1 auto !important;
  min-width: 0 !important;
  min-height: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden !important;
  position: relative !important;
}

.composer-anchor.is-home-active .composer-body-row .input-text-area textarea,
.composer-anchor.is-home-active .composer-body-row #userInput,
.home-content-wrapper .composer-anchor.is-home-active #userInput,
.composer-anchor.is-home-active
  .composer-media-overlay
  ~ .input-top-row
  .input-text-area
  textarea {
  flex: 1 1 auto !important;
  width: 100% !important;
  min-height: var(--text-min-h) !important;
  max-height: none !important;
  height: 100% !important;
  padding: 4px 12px 4px 0 !important;
  padding-left: 0 !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
  resize: none !important;
  box-sizing: border-box !important;
  border: 0 !important;
  outline: none !important;
  background: transparent !important;
  scrollbar-width: none;
}

.composer-anchor.is-home-active .composer-body-row .input-text-area textarea::-webkit-scrollbar,
.composer-anchor.is-home-active .composer-body-row #userInput::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.composer-anchor.is-home-active .composer-scroll-edge {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 18px;
  pointer-events: none;
}

.composer-anchor.is-home-active .input-text-area.is-scrollbar-hot #userInput,
.composer-anchor.is-home-active .input-text-area.is-scrollbar-hot textarea {
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 181, 253, 0.45) transparent;
}

.composer-anchor.is-home-active .input-text-area.is-scrollbar-hot #userInput::-webkit-scrollbar,
.composer-anchor.is-home-active .input-text-area.is-scrollbar-hot textarea::-webkit-scrollbar {
  width: 6px;
}

.composer-anchor.is-home-active .input-text-area.is-scrollbar-hot #userInput::-webkit-scrollbar-thumb,
.composer-anchor.is-home-active .input-text-area.is-scrollbar-hot textarea::-webkit-scrollbar-thumb {
  background: rgba(196, 181, 253, 0.42);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.composer-anchor.is-home-active .home-composer-status {
  flex: 0 0 auto;
  margin: 4px 0 0;
}

/* ========== Layer 2: 工具栏（模型 | 麦克风+发送，不参与上层空间竞争） ========== */
.composer-anchor.is-home-active .chat-input-container > .input-bottom-row,
.composer-anchor.is-home-active .composer-toolbar-layer,
.composer-anchor.is-home-active .input-bottom-row {
  flex: 0 0 var(--toolbar-h) !important;
  flex-grow: 0 !important;
  flex-shrink: 0 !important;
  height: var(--toolbar-h) !important;
  min-height: var(--toolbar-h) !important;
  max-height: var(--toolbar-h) !important;
  width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 12px !important;
  position: relative !important;
  z-index: 2 !important;
  overflow: visible !important;
  box-sizing: border-box !important;
  grid-area: unset !important;
}

.composer-anchor.is-home-active .input-bottom-row .input-toolbar {
  display: flex !important;
  align-items: center !important;
  flex: 1 1 auto !important;
  min-width: 0 !important;
  height: 100% !important;
}

.composer-anchor.is-home-active .input-bottom-row .composer-action-group {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  gap: 10px !important;
  flex: 0 0 auto !important;
  height: 100% !important;
}

.composer-anchor.is-home-active .input-bottom-row .toolbar-pill,
.composer-anchor.is-home-active .input-bottom-row .composer-voice-btn,
.composer-anchor.is-home-active .input-bottom-row .btn-send-agent {
  flex-shrink: 0 !important;
  align-self: center !important;
}

@media (max-width: 720px) {
  .composer-anchor.is-home-active .composer-wrap.dashboard-mode .chat-input-container,
  .composer-anchor.is-home-active .composer-wrap.dashboard-mode .chat-input-container.composer-shell {
    --shell-max-h: min(48vh, 320px);
    --media-col-max: 200px;
    max-height: var(--shell-max-h) !important;
  }
}