:root {
  /* ===== 主题：深空极光 (Deep Aurora) ===== */
  --bg-app: #030508;
  --bg-sidebar: rgba(5, 8, 16, 0.85);
  --card-bg: rgba(20, 25, 40, 0.6);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --primary: #8b5cf6;
  --primary-hover: #7c3aed;
  --accent: #38bdf8; 
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #475569;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --upload-bg: rgba(255, 255, 255, 0.03);
  --upload-border: rgba(255, 255, 255, 0.15);
  --upload-active: rgba(139, 92, 246, 0.15);
  --panel-height: 880px;
}

/* ================= 全局重置 ================= */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; height: 100%;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-app);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(139, 92, 246, 0.15), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(56, 189, 248, 0.15), transparent 25%);
  background-attachment: fixed;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ================= 布局框架 ================= */
.app-shell { display: flex; height: 100vh; overflow: hidden; }

/* 侧边栏 */
.sidebar {
  width: 250px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  padding: 20px 16px;
  display: flex; flex-direction: column; gap: 24px;
  flex-shrink: 0;
}
.sidebar-logo {
  display: flex; align-items: center; gap: 12px;
  padding: 0 8px 12px;
  border-bottom: 1px solid var(--card-border);
}
.logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--accent-gradient);
  color: #fff; font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.4);
}
.logo-text { display: flex; flex-direction: column; }
.logo-title { font-weight: 700; font-size: 18px; letter-spacing: -0.5px; }
.logo-sub { font-size: 11px; color: var(--text-muted); opacity: 0.8; }

.sidebar-nav { display: flex; flex-direction: column; gap: 6px; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}
.nav-item:hover { background: rgba(255,255,255,0.05); color: #fff; }
.nav-icon { font-size: 18px; width: 24px; text-align: center; }

/* 侧边栏激活状态 */
#tab-text:checked ~ .app-shell .sidebar-nav label[for="tab-text"],
#tab-image:checked ~ .app-shell .sidebar-nav label[for="tab-image"],
#tab-extend:checked ~ .app-shell .sidebar-nav label[for="tab-extend"],
#tab-transition:checked ~ .app-shell .sidebar-nav label[for="tab-transition"],
#tab-fusion:checked ~ .app-shell .sidebar-nav label[for="tab-fusion"],
#tab-multi:checked ~ .app-shell .sidebar-nav label[for="tab-multi"],
#tab-swap:checked ~ .app-shell .sidebar-nav label[for="tab-swap"],
#tab-tools:checked ~ .app-shell .sidebar-nav label[for="tab-tools"],
#tab-sprite:checked ~ .app-shell .sidebar-nav label[for="tab-sprite"] {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.sidebar-bottom { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--card-border); font-size: 12px; color: var(--text-muted); }
.balance-line { margin-bottom: 10px; font-family: monospace; }
.sidebar-tip { font-size: 10px; color: var(--text-dim); }

/* 主区域 */
.app-main { flex: 1; display: flex; flex-direction: column; position: relative; overflow: hidden; }
.mobile-tabs { display: none; }

/* 工作区网格 */
.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(400px, 0.5fr) 1fr;
  gap: 20px;
  padding: 24px;
  overflow-y: auto;
  align-items: start;
}
.workspace-left, .workspace-right { min-width: 0; }
.right-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* 面板切换逻辑 */
.panel { display: none; animation: fadeIn 0.3s ease; }
#tab-text:checked ~ .app-shell #textCard,
#tab-image:checked ~ .app-shell #imageCard,
#tab-extend:checked ~ .app-shell #extendCard,
#tab-transition:checked ~ .app-shell #transitionCard,
#tab-fusion:checked ~ .app-shell #fusionCard,
#tab-multi:checked ~ .app-shell #multiCard,
#tab-swap:checked ~ .app-shell #swapCard,
#tab-tools:checked ~ .app-shell #videoToolsCard,
#tab-sprite:checked ~ .app-shell #spriteCard { display: block; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* ================= 全局组件 (提前定义，防止被媒体查询吞噬) ================= */

/* 1. 弹窗 (Dialog) */
.dialog-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center; z-index: 10000;
}
.dialog-backdrop.show { display: flex; }
.dialog-panel {
  background: #0f172a; border: 1px solid var(--card-border); border-radius: 16px;
  width: min(400px, 90%); padding: 20px; box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.dialog-title-row { display: flex; justify-content: space-between; margin-bottom: 12px; }
.dialog-title { font-size: 16px; font-weight: 600; color: #fff; }
.dialog-message { font-size: 14px; color: var(--text-muted); line-height: 1.5; margin-bottom: 20px; white-space: pre-wrap; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; }
.dialog-close-btn { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 18px; }

.api-switcher-panel {
  width: min(560px, 92vw);
}
.api-switcher-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.api-switcher-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}
.api-switcher-hint {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-muted);
}
.api-key-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 56vh;
  overflow-y: auto;
}
.api-key-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: rgba(255,255,255,0.03);
}
.api-key-item.is-current {
  border-color: rgba(16, 185, 129, 0.65);
  background: rgba(16, 185, 129, 0.08);
}
.api-key-name {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.api-key-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
}
.api-key-pill {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
}
.api-key-pill.ok { color: #34d399; }
.api-key-pill.low { color: #fbbf24; }
.api-key-pill.error { color: #f87171; }
.api-key-error {
  margin-top: 8px;
  font-size: 11px;
  color: #fca5a5;
  word-break: break-word;
}
.api-key-empty {
  padding: 18px;
  text-align: center;
  color: var(--text-muted);
  border: 1px dashed var(--card-border);
  border-radius: 8px;
}

/* Toast */
.app-toast-container { 
  position: fixed; top: 20px; right: 20px; z-index: 9999; 
  display: flex; flex-direction: column; gap: 10px;
  pointer-events: none; /* ✅ 关键：让容器透传点击，防止隐形遮挡 */
}
.app-toast { 
  background: rgba(20, 25, 40, 0.9); backdrop-filter: blur(10px); color: #fff; 
  padding: 12px 16px; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); 
  border-left: 4px solid var(--primary); display: flex; gap: 10px; min-width: 300px; 
  animation: slideIn 0.3s; align-items: flex-start;
  pointer-events: auto; /* ✅ 恢复弹窗本身的点击（如果有交互的话） */
}
.app-toast.toast-success { border-color: var(--success); }
.app-toast.toast-error { border-color: var(--danger); }
.toast-title { font-weight: 600; font-size: 14px; margin-bottom: 2px; }
.toast-msg { font-size: 12px; color: var(--text-muted); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ================= 卡片与表单 ================= */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(12px);
  height: var(--panel-height);
  max-height: var(--panel-height);
  overflow-y: auto;
  scrollbar-gutter: stable; /* 修复滚动条抖动 */
  position: relative;
}

.card h2 { margin: 0 0 20px 0; font-size: 18px; font-weight: 600; border-left: 4px solid var(--primary); padding-left: 12px; }
.group-title { font-size: 13px; font-weight: 600; color: var(--accent); margin: 24px 0 10px; text-transform: uppercase; letter-spacing: 0.5px; display: flex; align-items: center; gap: 8px; }
.group-title::after { content: ''; flex: 1; height: 1px; background: var(--card-border); opacity: 0.5; }
.sub-title { font-size: 14px; font-weight: 600; margin: 15px 0 10px; color: var(--text-main); }

.panel-grid { display: grid; grid-template-columns: 1fr 1fr; column-gap: 20px; row-gap: 0; }
.panel-grid > .group-title, .panel-grid > .form-actions, .panel-grid > .form-block, .panel-grid > .form-small, .panel-grid > .form-tip { grid-column: 1 / -1; }

.form-label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }
.form-row { display: flex; gap: 12px; }
.form-row .form-label { flex: 1; }

input[type="text"], input[type="number"], input[type="url"], textarea, select {
  width: 100%;
  background: rgba(0, 0, 0, 0.3) !important;
  border: 1px solid var(--upload-border) !important;
  color: var(--text-main) !important;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  transition: all 0.2s;
  outline: none;
  margin-top: 4px;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--primary) !important;
  background: rgba(0, 0, 0, 0.5) !important;
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}
textarea { min-height: 80px; resize: vertical; line-height: 1.5; }
.seed-input-wrapper { display: flex; gap: 8px; align-items: center; }
.form-small { font-size: 12px; color: var(--text-dim); margin-top: 4px; }
.form-tip { font-size: 12px; color: var(--text-dim); background: rgba(255,255,255,0.03); padding: 8px; border-radius: 6px; margin-top: 10px; }
select option { background-color: #0f172a; color: #fff; }

/* ================= 上传框样式 (核心) ================= */
.upload-box {
  position: relative; width: 100%; min-height: 100px;
  border: 2px dashed var(--upload-border); border-radius: 12px;
  background: var(--upload-bg); display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center;
  transition: all 0.25s ease; cursor: pointer; padding: 20px; margin-top: 6px;
}
.upload-box:hover { border-color: var(--primary); background: rgba(139, 92, 246, 0.05); }
.upload-box.has-file { border-style: solid; border-color: var(--success); background: rgba(16, 185, 129, 0.05); }
.upload-box.has-preview {
  border-style: solid; border-color: var(--success);
  background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, rgba(5, 8, 16, 0.6) 100%);
}
.upload-box.has-image-preview, .mini-upload-box.has-image-preview {
  min-height: 0; overflow: hidden; flex: 0 0 auto;
}
.upload-box.has-image-preview { margin-inline: auto; }
.upload-icon { font-size: 28px; margin-bottom: 8px; opacity: 0.7; }
.upload-text { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.upload-hint { font-size: 11px; color: var(--text-dim); margin-top: 4px; }
.upload-box.has-preview .upload-icon, .upload-box.has-preview .upload-text, .upload-box.has-preview .upload-hint { display: none; }
.upload-box input[type="file"] { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; z-index: 10; }
.upload-preview-media {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  object-fit: contain; border-radius: 10px; z-index: 1; padding: 4px;
  background: rgba(0, 0, 0, 0.2); backdrop-filter: blur(2px); pointer-events: none;
}
video.upload-preview-media { background: #000; }
.file-status-tag {
  display: inline-flex; align-items: center; font-size: 11px; font-weight: 700;
  line-height: 1.2; padding: 3px 8px; border: 1px solid #64748b; border-radius: 5px;
  margin-top: 6px; background: #1e293b; color: #f8fafc;
  box-shadow: 0 2px 9px rgba(0,0,0,0.72); text-shadow: 0 1px 1px rgba(0,0,0,0.65);
}
.file-status-tag[data-upload-state="idle"] { background: #1e293b; border-color: #64748b; color: #f1f5f9; }
.file-status-tag[data-upload-state="uploading"] { background: #713f12; border-color: #f59e0b; color: #fff7ed; }
.file-status-tag[data-upload-state="success"] { background: #065f46; border-color: #10b981; color: #ecfdf5; }
.file-status-tag[data-upload-state="error"] { background: #7f1d1d; border-color: #ef4444; color: #fff1f2; }
.upload-box.has-preview[data-upload-state="uploading"], .mini-upload-box[data-upload-state="uploading"] { border-color: #f59e0b; }
.upload-box.has-preview[data-upload-state="error"], .mini-upload-box[data-upload-state="error"] { border-color: #f87171; }
.upload-box.has-preview .file-status-tag {
  position: absolute; top: 8px; left: 8px; z-index: 12; margin: 0;
  pointer-events: none; border-width: 1px;
}
.upload-reupload-hint {
  display: none; position: absolute; left: 50%; bottom: 8px; z-index: 4;
  transform: translateX(-50%); max-width: calc(100% - 12px); padding: 4px 9px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.2); background: rgba(3, 5, 12, 0.78);
  color: #e2e8f0; font-size: 11px; font-weight: 600; line-height: 1.2;
  pointer-events: none; backdrop-filter: blur(8px);
}
.upload-box.has-preview > .upload-reupload-hint,
.mini-upload-box.has-preview > .upload-reupload-hint,
.mini-upload-box.has-img > .upload-reupload-hint { display: block; }
.mini-upload-box .mini-upload-status {
  position: absolute; top: 3px; left: 50%; z-index: 4; margin: 0;
  transform: translateX(-50%); padding: 2px 5px; max-width: calc(100% - 6px);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 9px;
  pointer-events: none;
}
.mini-upload-box.has-preview > .upload-reupload-hint, .mini-upload-box.has-img > .upload-reupload-hint { bottom: 4px; padding: 3px 5px; font-size: 8px; }
.upload-box.is-compact-upload-preview,
.mini-upload-box.is-compact-upload-preview { overflow: visible; }
.upload-box.is-compact-upload-preview .file-status-tag {
  top: 50%; left: 6px; z-index: 12; transform: translateY(-50%);
  padding: 2px 5px; font-size: 10px; line-height: 1; white-space: nowrap;
}
.upload-box.is-compact-upload-preview > .upload-reupload-hint {
  top: 50%; right: 6px; bottom: auto; left: auto; z-index: 12;
  transform: translateY(-50%); max-width: calc(100% - 100px);
  padding: 2px 6px; font-size: 10px; line-height: 1; white-space: nowrap;
}
.mini-upload-box.is-compact-upload-preview .mini-upload-status {
  top: 50%; left: 3px; z-index: 8; transform: translateY(-50%);
  padding: 2px 3px; font-size: 8px; line-height: 1; white-space: nowrap;
}
.mini-upload-box.is-compact-upload-preview > .upload-reupload-hint {
  top: 50%; right: 3px; bottom: auto; left: auto; z-index: 8;
  transform: translateY(-50%); max-width: calc(100% - 42px);
  padding: 2px 3px; font-size: 7px; line-height: 1; white-space: nowrap;
}
.upload-inline-status { display: inline-flex; align-items: center; width: fit-content; }
.pv-file-reupload-hint {
  display: block; margin-top: 4px; color: var(--text-dim); font-size: 11px;
  line-height: 1.35;
}

/* Swap/Extend 视频框自适应 */
#swapVideoUploadBox.has-preview, #extVideoUploadBox.has-preview {
  height: auto !important; min-height: 0 !important; padding: 0 !important;
  background: #000; border-style: solid; border-color: var(--success);
}
#swapVideoUploadBox.has-preview .upload-preview-media, #extVideoUploadBox.has-preview .upload-preview-media {
  position: relative !important; width: 100% !important; height: auto !important;
  object-fit: contain; display: block; border-radius: 10px; top: auto; left: auto;
}

/* 迷你上传框 (Multi-Transition) */
.mini-upload-box {
  width: 100px; height: 100px; background: rgba(0,0,0,0.3);
  border: 1px dashed var(--upload-border); border-radius: 8px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; cursor: pointer; overflow: hidden;
}
.mini-upload-box:hover { border-color: var(--primary); }
.mini-upload-box input { position: absolute; width: 100%; height: 100%; opacity: 0; cursor: pointer; z-index: 5; }
.mini-upload-icon { font-size: 20px; margin-bottom: 4px; opacity: 0.7; }
.mini-upload-text { font-size: 10px; color: var(--text-dim); text-align: center; line-height: 1.2; }
.mini-upload-box.has-preview { border-style: solid; border-color: var(--success); background: #000; }
.mini-upload-box.has-preview .mini-upload-icon, .mini-upload-box.has-preview .mini-upload-text { display: none; }
.mini-upload-box .upload-preview-media, .mini-upload-box .mini-preview {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; z-index: 1; display: block; border-radius: 6px;
}

/* ================= 按钮 ================= */
.btn {
  border: none; outline: none; cursor: pointer; padding: 10px 20px; border-radius: 8px;
  font-size: 13px; font-weight: 600; transition: transform 0.1s, filter 0.2s;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; color: #fff;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent-gradient); box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4); }
.btn-primary:hover { filter: brightness(1.1); }
.btn-primary:disabled { background: #4b5563; box-shadow: none; cursor: not-allowed; }
.btn-outline { background: transparent; border: 1px solid var(--card-border); color: var(--text-muted); }
.btn-outline:hover { border-color: var(--text-muted); color: #fff; background: rgba(255,255,255,0.05); }
.btn-xs { padding: 4px 10px; font-size: 11px; border-radius: 6px; }
.btn-danger { background: rgba(239, 68, 68, 0.2); border: 1px solid rgba(239, 68, 68, 0.5); color: #fca5a5; }
.btn-danger:hover { background: rgba(239, 68, 68, 0.4); }
.btn-dashed { border: 1px dashed var(--card-border); color: var(--text-muted); }
.btn-dashed:hover { border-color: var(--primary); color: var(--primary); background: rgba(139, 92, 246, 0.05); }
.btn-download-pill {
  background: var(--text-main); color: #000; font-size: 12px; font-weight: 700;
  padding: 6px 16px; border-radius: 20px; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  transition: transform 0.1s, background 0.2s; cursor: pointer;
}
.btn-download-pill:hover { background: #fff; transform: scale(1.05); box-shadow: 0 0 10px rgba(255, 255, 255, 0.3); }
.btn-download-pill:active { transform: scale(0.95); }
.btn-download-pill.disabled { opacity: 0.7; cursor: wait; pointer-events: none; }
.form-actions { margin-top: 20px; }

/* ================= 状态与进度 ================= */
.status-block { background: rgba(0,0,0,0.2); padding: 12px; border-radius: 10px; margin: 10px 0; border: 1px solid var(--card-border); }
.status-line { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 13px; }
.status-pill { padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: bold; }
.status-ok { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.status-running { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.status-blocked { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }
.status-error { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.status-unknown { background: rgba(255,255,255,0.1); color: var(--text-muted); }

/* 进度条动画 */
.progress { height: 8px; background: rgba(255, 255, 255, 0.08); border-radius: 4px; overflow: hidden; position: relative; margin-top: 8px; }
.progress-bar { height: 100%; border-radius: 4px; transition: width 0.3s ease-out; position: relative; }
.progress-bar.progress-running {
  background-color: var(--warning);
  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);
  background-size: 20px 20px;
  animation: progress-stripe 1s linear infinite, breathe-glow-bar 2s infinite ease-in-out;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
}
.progress-bar.progress-ok { background: var(--success); box-shadow: 0 0 10px rgba(16, 185, 129, 0.4); }
.progress-bar.progress-error, .progress-bar.progress-blocked { background: var(--danger); }
@keyframes progress-stripe { 0% { background-position: 20px 0; } 100% { background-position: 0 0; } }
@keyframes breathe-glow-bar { 0%, 100% { opacity: 0.8; filter: brightness(1); } 50% { opacity: 1; filter: brightness(1.2); } }

/* ================= 结果预览区域 ================= */
.video-preview {
  margin-top: 15px; background: #000; border-radius: 10px; overflow: hidden; border: 1px solid var(--card-border);
  width: 100%; min-height: 200px; height: auto; display: flex; align-items: center; justify-content: center;
}
.video-preview video { display: block; width: auto; height: auto; max-width: 100%; max-height: 500px; object-fit: contain; border-radius: 4px; }
.video-preview-placeholder { color: var(--text-dim); font-size: 12px; min-height: 200px; display: flex; align-items: center; justify-content: center; width: 100%; }
#statusRaw {
  background: #0d1117; padding: 10px; border-radius: 8px; font-family: 'Fira Code', monospace; font-size: 11px; color: #a5b4fc;
  border: 1px solid var(--card-border); margin-top: 10px; overflow-x: auto;
}
.raw-header { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
.raw-header h3 { font-size: 13px; font-weight: normal; color: var(--text-muted); margin: 0; }

.media-card {
  margin-top: 15px; border-radius: 12px; overflow: hidden; border: 1px solid var(--card-border); background: #000; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); width: 100%;
}
.media-card video { display: block; width: 100%; max-height: 500px; object-fit: contain; }
.media-toolbar { background: var(--card-bg); backdrop-filter: blur(10px); padding: 12px 16px; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--card-border); }
.media-actions-left { display: flex; gap: 12px; }
.action-link { background: none; border: none; color: var(--text-muted); font-size: 13px; cursor: pointer; display: flex; align-items: center; gap: 6px; transition: color 0.2s; padding: 0; }
.action-link:hover { color: #fff; }

/* ================= 历史记录 ================= */
.history-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.history-item {
  background: rgba(255,255,255,0.02); border: 1px solid var(--card-border); border-radius: 10px;
  padding: 12px; padding-bottom: 16px !important; transition: all 0.2s; position: relative; overflow: hidden; cursor: pointer;
}
.history-item:hover { 
  background: rgba(139, 92, 246, 0.1) !important; border-color: var(--primary) !important;
  transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.history-item:active { transform: translateY(0); background: rgba(139, 92, 246, 0.05) !important; }
.history-header { display: flex; justify-content: space-between; align-items: center; font-size: 12px; margin-bottom: 6px; }
.history-title { display: flex; gap: 8px; align-items: center; }
.history-led { width: 6px; height: 6px; border-radius: 50%; }
.history-led.status-ok { background: var(--success); }
.history-led.status-running { background-color: var(--warning); box-shadow: 0 0 0 rgba(245, 158, 11, 0); animation: led-breathe 1.5s infinite; }
.history-led.status-error { background: var(--danger); }
@keyframes led-breathe { 0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); } 70% { box-shadow: 0 0 0 4px rgba(245, 158, 11, 0); } 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); } }
.history-id { font-family: monospace; color: var(--accent); }
.history-source-tag { font-size: 10px; padding: 1px 4px; border-radius: 4px; background: rgba(255,255,255,0.1); }
.history-new-badge {
  display: inline-block; font-size: 10px; font-weight: 800; color: #ff4d4f; border: 1px solid rgba(255, 77, 79, 0.5); background: rgba(255, 77, 79, 0.1);
  padding: 0 4px; border-radius: 4px; margin-left: 6px; animation: pulse-red 2s infinite; vertical-align: middle;
}
@keyframes pulse-red { 0% { box-shadow: 0 0 0 0 rgba(255, 77, 79, 0.4); } 70% { box-shadow: 0 0 0 4px rgba(255, 77, 79, 0); } 100% { box-shadow: 0 0 0 0 rgba(255, 77, 79, 0); } }
.history-prompt { font-size: 12px; color: var(--text-main); margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; opacity: 0.9; }
.history-meta { font-size: 11px; color: var(--text-dim); display: flex; justify-content: space-between; margin-bottom: 6px; }
.history-cost { color: #a5b4fc; }
.history-footer { display: flex; justify-content: space-between; align-items: center; }
.history-time { font-size: 10px; color: var(--text-dim); }
.history-actions { display: flex; gap: 6px; }
.history-footer-bar { margin-top: 15px; padding-top: 10px; border-top: 1px dashed var(--card-border); display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-muted); }
.history-footer-actions { display: flex; gap: 8px; }
.history-progress-track { position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: rgba(255, 255, 255, 0.05); overflow: hidden; }
.history-progress-fill { height: 100%; width: 0%; background: var(--accent-gradient); transition: width 0.5s linear; box-shadow: 0 0 8px var(--primary); }

/* ================= 多重转场 & Swap 特定组件 ================= */
.multi-frame-list { display: flex; flex-direction: column; gap: 12px; }
.fusion-reference-list { display: flex; flex-direction: column; gap: 12px; }
.fusion-ref-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}
.fusion-ref-main { display: flex; flex-direction: column; gap: 8px; }
.fusion-ref-title {
  font-size: 14px;
  font-weight: 700;
  color: #38bdf8;
}
.fusion-ref-item .fusion-upload-box { margin-top: 0; min-height: 140px; }
.fusion-ref-item .fusion-upload-box.is-dragover {
  border-color: var(--primary);
  background: rgba(139, 92, 246, 0.12);
}
.fusion-ref-item .fusion-upload-box.is-uploading { opacity: 0.86; }
.fusion-ref-item .form-small { margin-top: 2px; }
.frame-item {
  background: rgba(255, 255, 255, 0.03); border: 1px solid var(--card-border); border-radius: 12px; padding: 12px;
  position: relative; display: grid; grid-template-columns: max-content minmax(0, 1fr) auto; gap: 12px; align-items: center; transition: background 0.2s;
}
.frame-item:hover { background: rgba(255, 255, 255, 0.06); border-color: var(--primary); }
.frame-index {
  position: absolute; top: -8px; left: -8px; width: 20px; height: 20px; background: var(--accent); color: #000; font-size: 11px; font-weight: 800;
  border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 5px rgba(0,0,0,0.5); z-index: 2;
}
.frame-inputs { display: flex; flex-direction: column; gap: 8px; }

.mask-list-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; margin-top: 8px; }
.mask-option {
  background: rgba(0,0,0,0.3); border: 1px solid var(--card-border); border-radius: 8px; padding: 8px;
  cursor: pointer; transition: all 0.2s; text-align: center; position: relative; overflow: hidden;
}
.mask-option:hover { background: rgba(255,255,255,0.05); border-color: var(--text-muted); }
.mask-option.selected { background: rgba(139, 92, 246, 0.15); border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.mask-option.selected::after {
  content: '✔'; position: absolute; top: 4px; right: 4px; background: var(--primary); color: #fff; width: 16px; height: 16px;
  border-radius: 50%; font-size: 10px; display: flex; align-items: center; justify-content: center;
}
.mask-thumb { width: 100%; aspect-ratio: 1; object-fit: contain; background: #000; border-radius: 4px; margin-bottom: 6px; }
.mask-name { font-size: 11px; color: var(--text-main); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ================= 媒体查询 (放在最后) ================= */
@media (max-width: 1024px) {
  .sidebar { width: 70px; padding: 16px 10px; }
  .logo-title, .logo-sub, .nav-label, .balance-line, .sidebar-tip { display: none; }
  .sidebar-nav { align-items: center; }
  .nav-item { justify-content: center; padding: 10px; }
  .nav-icon { margin: 0; font-size: 20px; }
  .card { height: auto; max-height: none; }
}

@media (max-width: 768px) {
  .sidebar { display: none; }
  .mobile-tabs { display: flex; overflow-x: auto; background: var(--bg-sidebar); padding: 10px; gap: 10px; border-bottom: 1px solid var(--card-border); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(10px); }
  .mobile-tab-item { flex: 0 0 auto; padding: 6px 14px; border-radius: 20px; border: 1px solid var(--card-border); color: var(--text-muted); font-size: 13px; display: flex; align-items: center; gap: 6px; background: rgba(0,0,0,0.3); }
  .mobile-api-switcher-btn { font-family: inherit; cursor: pointer; }
  
  /* 移动端高亮 */
  #tab-text:checked ~ .app-shell .mobile-tab-item[for="tab-text"],
  #tab-image:checked ~ .app-shell .mobile-tab-item[for="tab-image"],
  #tab-extend:checked ~ .app-shell .mobile-tab-item[for="tab-extend"],
  #tab-transition:checked ~ .app-shell .mobile-tab-item[for="tab-transition"],
  #tab-fusion:checked ~ .app-shell .mobile-tab-item[for="tab-fusion"],
  #tab-multi:checked ~ .app-shell .mobile-tab-item[for="tab-multi"],
  #tab-swap:checked ~ .app-shell .mobile-tab-item[for="tab-swap"],
  #tab-tools:checked ~ .app-shell .mobile-tab-item[for="tab-tools"],
  #tab-sprite:checked ~ .app-shell .mobile-tab-item[for="tab-sprite"] {
    background: var(--accent-gradient); color: #fff; border-color: transparent;
  }
  
  .app-shell { height: auto; overflow: visible; display: block; }
  .panel-grid { grid-template-columns: 1fr; }
  .workspace { padding: 16px; gap: 16px; }
  .card { border-radius: 16px; padding: 16px; }
}

@keyframes spin { 100% { transform: rotate(360deg); } }
.loader-spin { display: inline-block; animation: spin 1s linear infinite; }

/* =========================================
   ✅ 新增：批量生成滑动条样式 (Slider)
   ========================================= */

.batch-slider-wrapper {
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.batch-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 15px;
}

/* 滑动条容器 */
.range-container {
  flex: 1;
  position: relative;
  height: 24px;
  display: flex;
  align-items: center;
}

/* 真正的 Range Input */
input[type=range].custom-range {
  -webkit-appearance: none; /* 去掉默认样式 */
  width: 100%;
  height: 6px;
  background: transparent; /* 背景透明，由下方的 track-bg 控制 */
  outline: none;
  cursor: pointer;
  z-index: 2; /* 浮在圆点上方 */
  margin: 0;
  border: none !important; /*以此覆盖全局 input 样式*/
  padding: 0 !important;
}

/* 滑块 (Thumb) 样式 - Chrome/Safari/Edge */
input[type=range].custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 18px;
  width: 18px;
  border-radius: 50%;
  background: #ffffff;
  cursor: pointer;
  margin-top: -6px; /* 居中 */
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
  transition: transform 0.1s;
}
input[type=range].custom-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

/* 轨道 (Track) - Chrome/Safari/Edge */
input[type=range].custom-range::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: transparent; /* 我们用 JS 动态控制背景 */
  border-radius: 3px;
}

/* 轨道背景层 (用于显示渐变和底色) */
.slider-track-bg {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 6px;
  transform: translateY(-50%);
  border-radius: 3px;
  background: #4b5563; /* 未激活部分的灰色 */
  z-index: 0;
  pointer-events: none;
}

/* 动态填充层 (JS控制宽度) */
.slider-track-fill {
  position: absolute;
  top: 50%;
  left: 0;
  height: 6px;
  transform: translateY(-50%);
  border-radius: 3px;
  background: linear-gradient(90deg, #ff9a9e 0%, #fe619a 100%); /* 你的渐变色 */
  z-index: 0;
  pointer-events: none;
  width: 0%; /* JS更新 */
}

/* 刻度圆点 (Dots) */
.slider-dots {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  padding: 0 2px; /* 微调对齐 */
  z-index: 1;
}

.slider-dot {
  width: 6px;
  height: 6px;
  background: #fff;
  border-radius: 50%;
  opacity: 1;
}

/* 右侧数字显示框 */
.count-display-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  width: 40px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fira Code', monospace;
  font-weight: bold;
  color: #fff;
  font-size: 14px;
}
[hidden] { display: none !important; }

/* Keep the original Deep Aurora components; these rules only repair layout edges. */
.workspace {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 22px;
}
.workspace-left, .workspace-right, .right-columns, .panel { min-width: 0; }
.workspace .card {
  height: auto;
  max-height: none;
  overflow: visible;
}
.right-columns {
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}
.panel-grid { column-gap: 16px; }
.panel-grid > .form-row { display: grid; grid-template-columns: minmax(0, 1fr); grid-column: auto; gap: 0 12px; min-width: 0; }
.panel-grid > .form-row:has(> .form-label:nth-child(2)) { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel-grid > .form-row > .form-label { min-width: 0; }
.card h2 { display: flex; align-items: center; gap: 10px; }
.pv-icon { display: inline-block; flex: 0 0 auto; vertical-align: -0.14em; }
.nav-icon { display: inline-flex; align-items: center; justify-content: center; }
.frame-caption { display: flex; align-items: center; gap: 7px; margin-bottom: 6px; }
.form-actions { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 12px; }
.form-actions .form-tip { margin: 0; }
#statusEmptyState {
  height: auto !important;
  min-height: 220px;
  margin-top: 18px;
  padding: 24px 16px;
  border: 1px dashed var(--card-border);
  border-radius: 12px;
  background: rgba(255,255,255,.02);
}
#statusEmptyState > div:first-child .pv-icon { width: 42px; height: 42px; }
#historyEmpty { margin-top: 16px; padding: 18px 12px; border: 1px dashed var(--card-border); background: rgba(255,255,255,.02); }
#right-status-panel, #right-history-panel { align-self: start; }
.workspace-wide { display: none; grid-column: 1 / -1; width: 100%; min-width: 0; }
#tab-sprite:checked ~ .app-shell .workspace-left,
#tab-sprite:checked ~ .app-shell .workspace-right { display: none; }
#tab-sprite:checked ~ .app-shell .workspace-wide { display: block; }
.panel-sprite { width: 100%; min-width: 0; padding: 0; overflow: visible; }
.sprite-tool-app { width: 100%; min-width: 0; box-sizing: border-box; color-scheme: dark; }
.sprite-load-error { margin: 24px auto; padding: 18px; border: 1px solid rgba(239,68,68,.35); border-radius: 10px; color: #fecaca; background: rgba(127,29,29,.16); }

/* Text-first native-style controls, using the existing palette and spacing. */
.pv-emoji-icon { display: inline-flex; align-items: center; justify-content: center; line-height: 1; vertical-align: -0.08em; }
.loader-icon { animation: spin 1s linear infinite; }
.pv-select { position: relative; display: block; width: 100%; min-width: 0; margin-top: 4px; }
.pv-select-native, .pv-file-native {
  position: absolute !important; width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important; overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important;
}
.pv-select-trigger {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  width: 100%; min-height: 38px; padding: 9px 12px; margin-top: 0;
  border: 1px solid var(--upload-border); border-radius: 8px;
  color: var(--text-main); background: rgba(0,0,0,.3); text-align: left;
  font: inherit; font-size: 13px; cursor: pointer;
}
.pv-select-trigger:hover, .pv-select-trigger[aria-expanded="true"] { border-color: var(--primary); }
.pv-select-trigger:focus-visible, .pv-file-trigger:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.pv-select-trigger[aria-invalid="true"] { border-color: var(--danger); }
.pv-select-value { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pv-select-chevron { flex: 0 0 auto; color: var(--text-muted); }
.pv-select-menu {
  position: fixed; z-index: 10050; overflow: auto; padding: 4px;
  border: 1px solid var(--card-border); border-radius: 8px;
  background: #0f172a; box-shadow: 0 12px 32px rgba(0,0,0,.5);
}
.pv-select-option {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  width: 100%; min-height: 34px; padding: 7px 9px; border: 0; border-radius: 5px;
  color: var(--text-main); background: transparent; text-align: left; font: inherit; font-size: 13px; cursor: pointer;
}
.pv-select-option:hover, .pv-select-option:focus-visible, .pv-select-option.is-selected { background: rgba(139,92,246,.16); outline: none; }
.pv-select-option:disabled { color: var(--text-dim); cursor: not-allowed; }
.pv-select-option-mark { color: var(--primary); }
.pv-select-listbox { max-height: 220px; overflow: auto; padding: 4px; border: 1px solid var(--upload-border); border-radius: 8px; background: rgba(0,0,0,.3); }
.pv-file-control { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; min-width: 0; margin-top: 4px; }
.pv-file-trigger { display: inline-flex; align-items: center; gap: 7px; min-height: 34px; padding: 6px 11px; border: 1px solid var(--card-border); border-radius: 7px; color: var(--text-muted); background: transparent; font: inherit; font-size: 12px; cursor: pointer; }
.pv-file-trigger:hover { border-color: var(--primary); color: var(--text-main); background: rgba(139,92,246,.06); }
.pv-file-trigger:disabled { opacity: .55; cursor: not-allowed; }
.pv-file-name { min-width: 0; overflow: hidden; color: var(--text-dim); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }

/* Fusion references: keep preview, metadata, fields, and actions inside each card. */
.fusion-ref-item { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
.fusion-ref-main { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.fusion-ref-title { grid-column: 1 / -1; }
.fusion-ref-main .fusion-upload-box { width: 100%; min-width: 0; min-height: 140px; }
.fusion-ref-main > .form-small { min-width: 0; overflow-wrap: anywhere; }
.fusion-ref-item > .form-row { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); align-content: start; min-width: 0; }
.fusion-ref-item > .form-row .form-label { grid-column: span 3; min-width: 0; margin-bottom: 0; }
.fusion-ref-item > .form-row .btn { grid-column: span 2; min-width: 0; white-space: nowrap; }
.fusion-ref-item > .form-row input, .fusion-ref-item > .form-row select { min-width: 0; }

/* The toolbox has a different form structure from the generation panels. */
#videoToolsCard > .panel-grid { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
#videoToolsCard > .panel-grid > * { width: 100%; min-width: 0; }
#videoToolsCard .form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: end; gap: 12px; min-width: 0; }
#videoToolsCard .form-row .form-label { min-width: 0; margin-bottom: 0; }
#videoToolsCard .form-row input, #videoToolsCard .form-row select { min-width: 0; }
#videoToolForm.panel-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
#videoToolFields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; min-width: 0; }
#videoToolFields > .form-label { min-width: 0; overflow-wrap: anywhere; }
#videoToolFields textarea { min-height: 96px; }
#videoToolError { color: #fca5a5; overflow-wrap: anywhere; }
#videoToolMaskControls { display: grid; grid-template-columns: minmax(0, auto) minmax(180px, 1fr); align-items: start; }
#videoToolMaskControls .pv-select-static { grid-row: span 2; }
#videoToolMaskControls .form-tip { margin: 0; }
#videoTemplatesList { min-height: 140px; }

/* Video elements should retain their source aspect ratio rather than fill a card. */
.video-preview:has(video) { width: fit-content; max-width: 100%; min-height: 0; padding: 0; border: 0; background: transparent; }
.media-card { width: fit-content; max-width: 100%; }
.media-card video, .video-preview video { display: block; width: auto; height: auto; max-width: 100%; max-height: min(70vh, 740px); aspect-ratio: auto; object-fit: contain; }
.media-card .media-toolbar { width: 100%; }

@media (min-width: 1840px) {
  .right-columns { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
}
@media (max-width: 768px) {
  .workspace { padding: 12px; gap: 12px; }
  .card { padding: 16px; border-radius: 16px; }
  .fusion-ref-item { grid-template-columns: minmax(0, 1fr); }
  .panel-grid > .form-row { grid-column: 1 / -1; grid-template-columns: minmax(0, 1fr); }
  .panel-grid > .form-row:has(> .form-label:nth-child(2)) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-actions { grid-template-columns: minmax(0, 1fr); }
  .form-actions > .btn { width: 100%; }
  #videoToolsCard .form-row { grid-template-columns: minmax(0, 1fr); }
  #videoToolsCard .form-row > .btn { width: 100%; white-space: nowrap; }
  #videoToolUploadResult, #videoToolImageResult { overflow-wrap: anywhere; }
  #videoToolFields { grid-template-columns: minmax(0, 1fr); }
  #videoToolMaskControls { grid-template-columns: minmax(0, 1fr); }
  #videoToolMaskControls .pv-select-static { grid-row: auto; }
  .pv-select-trigger { min-height: 42px; }
  .pv-select-menu { max-width: calc(100vw - 16px); }
  .pv-select-option { min-height: 42px; }
  .video-preview:has(.media-card) { justify-content: center; }
  .media-card, .media-card video { max-width: 100%; }
  .frame-item { grid-template-columns: max-content minmax(0, 1fr) auto; gap: 8px; padding: 10px; }
  .mini-upload-box { width: 76px; height: 76px; }
  .right-panel h2 { margin-bottom: 16px; }
}
@media (max-width: 420px) {
  .panel-grid > .form-row, .panel-grid > .form-row:has(> .form-label:nth-child(2)) { grid-template-columns: minmax(0, 1fr); }
  .fusion-ref-item > .form-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #videoToolFields { grid-template-columns: minmax(0, 1fr); }
}

/* ================= 交互与动效精修 (沿用 Deep Aurora 配色与现有组件) ================= */
:root {
  --ease-ui: cubic-bezier(.2, .75, .25, 1);
  --ease-enter: cubic-bezier(.16, 1, .3, 1);
  --duration-quick: 140ms;
  --duration-ui: 220ms;
}

body { line-height: 1.5; }
.workspace { padding: clamp(18px, 2vw, 30px); }
.workspace .card { padding: clamp(20px, 1.7vw, 26px); }
.workspace .card h2 {
  min-height: 28px;
  margin-bottom: 22px;
  font-size: clamp(17px, 1.1vw, 19px);
  line-height: 1.3;
  letter-spacing: -.018em;
}
.panel-grid { row-gap: 2px; }
.group-title {
  margin-top: 26px;
  margin-bottom: 12px;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: .065em;
}
.panel-grid > .group-title:first-child { margin-top: 2px; }
.form-label { line-height: 1.45; font-weight: 500; }
.form-label > input, .form-label > textarea, .form-label > select { margin-top: 7px; }
.form-small, .form-tip { line-height: 1.55; }
.form-tip { border: 1px solid rgba(255,255,255,.055); }

.panel { animation: panel-enter 280ms var(--ease-enter) both; }
@keyframes panel-enter {
  from { opacity: 0; transform: translate3d(0, 8px, 0) scale(.997); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

.nav-item {
  min-height: 44px;
  transition: background-color var(--duration-ui) var(--ease-ui), color var(--duration-ui) var(--ease-ui),
    box-shadow var(--duration-ui) var(--ease-ui), transform var(--duration-quick) var(--ease-ui);
}
.nav-item:hover { transform: translateX(2px); }
.nav-item:active { transform: translateX(1px) scale(.985); }
.nav-icon { transition: transform var(--duration-ui) var(--ease-enter), opacity var(--duration-ui) var(--ease-ui); }
.nav-item:hover .nav-icon { transform: translateY(-1px); }
.nav-item .pv-icon, .mobile-tab-item .pv-icon { width: 18px; height: 18px; }
.sidebar-nav label[for] { user-select: none; }

.btn, .btn-download-pill, .pv-select-trigger, .pv-select-option, .pv-file-trigger, .action-link {
  transition-duration: var(--duration-quick);
  transition-timing-function: var(--ease-ui);
}
.btn { min-height: 38px; transition-property: transform, filter, box-shadow, background-color, border-color; }
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0) scale(.975); }
.btn:disabled { cursor: not-allowed; }
.btn-primary:hover:not(:disabled) { box-shadow: 0 6px 18px rgba(139, 92, 246, .38); }
.btn-outline:active:not(:disabled), .btn-dashed:active:not(:disabled), .btn-danger:active:not(:disabled) { transform: scale(.98); }
.btn-xs { min-height: 34px; }
.action-link { transition-property: color, transform; }
.action-link:hover { transform: translateY(-1px); }

input[type="text"], input[type="number"], input[type="url"], textarea, select,
.pv-select-trigger, .pv-file-trigger {
  transition-property: border-color, background-color, box-shadow, color;
  transition-duration: var(--duration-ui);
  transition-timing-function: var(--ease-ui);
}
input[type="text"]:hover:not(:focus), input[type="number"]:hover:not(:focus),
input[type="url"]:hover:not(:focus), textarea:hover:not(:focus), select:hover:not(:focus) {
  border-color: rgba(255,255,255,.26) !important;
}
.upload-box, .mini-upload-box, .fusion-ref-item, .mask-option {
  transition-property: border-color, background-color, box-shadow, transform;
  transition-duration: var(--duration-ui);
  transition-timing-function: var(--ease-ui);
}
.upload-box:hover, .mini-upload-box:hover { transform: translateY(-1px); }
.upload-box:active, .mini-upload-box:active { transform: scale(.995); }
.upload-box:focus-within, .mini-upload-box:focus-within { outline: 2px solid var(--primary); outline-offset: 2px; }
.upload-preview-media { animation: preview-enter 240ms var(--ease-enter) both; }
@keyframes preview-enter { from { opacity: 0; transform: scale(.985); } to { opacity: 1; transform: scale(1); } }

.pv-select-menu { animation: menu-enter 150ms var(--ease-enter) both; transform-origin: top center; }
@keyframes menu-enter { from { opacity: 0; transform: translateY(-4px) scale(.99); } to { opacity: 1; transform: translateY(0) scale(1); } }
.pv-select-option { transition: background-color var(--duration-quick) var(--ease-ui), color var(--duration-quick) var(--ease-ui); }
.history-item { transition: background-color var(--duration-ui) var(--ease-ui), border-color var(--duration-ui) var(--ease-ui), transform var(--duration-quick) var(--ease-ui), box-shadow var(--duration-ui) var(--ease-ui); }
.history-item:focus-within { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(139,92,246,.15); }
.history-footer-bar { gap: 12px; flex-wrap: wrap; }
.history-footer-actions { align-items: center; }

:where(button, a, input, textarea, select, [tabindex]):focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.pv-select-trigger:focus-visible, .pv-file-trigger:focus-visible { outline-offset: 2px; }

@media (max-width: 1024px) {
  .workspace { padding: 18px; }
  .workspace .card { padding: 20px; }
}
@media (max-width: 768px) {
  .workspace { padding: 14px; gap: 14px; }
  .workspace .card { padding: 18px; }
  .mobile-tabs {
    padding: 9px 12px;
    gap: 8px;
    scrollbar-width: none;
    scroll-snap-type: x proximity;
  }
  .mobile-tabs::-webkit-scrollbar { display: none; }
  .mobile-tab-item {
    min-height: 42px;
    padding: 7px 13px;
    transition: color var(--duration-ui) var(--ease-ui), background-color var(--duration-ui) var(--ease-ui),
      border-color var(--duration-ui) var(--ease-ui), box-shadow var(--duration-ui) var(--ease-ui), transform var(--duration-quick) var(--ease-ui);
    scroll-snap-align: center;
  }
  .mobile-tab-item:active { transform: scale(.97); }
  #tab-text:checked ~ .app-shell .mobile-tab-item[for="tab-text"],
  #tab-image:checked ~ .app-shell .mobile-tab-item[for="tab-image"],
  #tab-extend:checked ~ .app-shell .mobile-tab-item[for="tab-extend"],
  #tab-transition:checked ~ .app-shell .mobile-tab-item[for="tab-transition"],
  #tab-fusion:checked ~ .app-shell .mobile-tab-item[for="tab-fusion"],
  #tab-multi:checked ~ .app-shell .mobile-tab-item[for="tab-multi"],
  #tab-swap:checked ~ .app-shell .mobile-tab-item[for="tab-swap"],
  #tab-tools:checked ~ .app-shell .mobile-tab-item[for="tab-tools"],
  #tab-sprite:checked ~ .app-shell .mobile-tab-item[for="tab-sprite"] {
    box-shadow: 0 4px 14px rgba(139,92,246,.25);
  }
  .pv-file-trigger { min-height: 42px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* Approved generation-workbench layout: compact parameters and a persistent result column. */
.workspace {
  grid-template-columns: minmax(0, .441fr) minmax(0, .559fr);
  gap: clamp(14px, 1vw, 18px);
  padding: clamp(14px, 1.125vw, 18px) clamp(16px, 2.0625vw, 33px) clamp(14px, 1.125vw, 18px) clamp(16px, 1.45vw, 23px);
}
.right-columns { grid-template-columns: minmax(0, 1fr); gap: 16px; }
.parameter-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: 12px;
  row-gap: 0;
  min-width: 0;
}
.parameter-grid > .form-row { display: contents; }
.parameter-grid > .group-title,
.parameter-grid > .form-tip { grid-column: 1 / -1; }
.parameter-grid > .form-row > .form-label,
.parameter-grid > .form-label { max-width: 180px; min-width: 0; margin-bottom: 12px; }
.parameter-grid .pv-select,
.parameter-grid input,
.parameter-grid select { min-width: 0; }
.parameter-grid .pv-select { max-width: 100%; }
.parameter-grid .pv-select-trigger { min-height: 36px; padding: 8px 10px; }
.parameter-grid > [id$="SoundPromptWrapper"],
.parameter-grid > .form-label:has(input[type="file"]) { grid-column: 1 / -1; max-width: none; }

.preview-panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.preview-panel-heading h2 { margin-bottom: 3px; }
.preview-panel-heading p { margin: 0; color: var(--text-muted); font-size: 12px; }
.preview-panel-tag {
  flex: 0 0 auto;
  margin-top: 3px;
  padding: 4px 8px;
  border: 1px solid rgba(139, 92, 246, .24);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(139, 92, 246, .08);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
}
#statusVideoPreview {
  min-height: 0;
  aspect-ratio: 16 / 9;
  margin-top: 16px;
  border-color: var(--card-border);
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, .11), transparent 62%), #080c16;
}
#statusVideoPreview .video-preview-placeholder {
  min-height: 0;
  aspect-ratio: 16 / 9;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  box-sizing: border-box;
  text-align: center;
}
.preview-placeholder-icon { display: inline-flex; color: var(--accent); opacity: .82; }
#statusVideoPreview .video-preview-placeholder strong { color: var(--text-main); font-size: 13px; font-weight: 600; }
#statusVideoPreview .video-preview-placeholder > span:last-child { color: var(--text-dim); font-size: 11px; }
#statusVideoPreview:has(.media-card) { aspect-ratio: auto; }
#right-preview-panel, #right-status-panel, #right-history-panel { align-self: start; min-width: 0; }
#right-status-panel .form-label { margin-bottom: 0; }
#right-status-panel #statusVideoId { flex: 1 1 auto; min-width: 0; }
#right-status-panel #checkStatusBtn { flex: 0 0 auto; min-width: 56px; white-space: nowrap; }
#statusEmptyState {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 150px;
  margin-top: 16px;
  padding: 18px;
  color: var(--text-dim);
  text-align: center;
}
.status-empty-icon { display: inline-flex; margin-bottom: 8px; color: var(--text-muted); opacity: .72; }
.status-empty-icon .pv-icon { width: 28px; height: 28px; }
#statusEmptyState p { margin: 2px 0; font-size: 12px; }
#statusEmptyState p:first-of-type { color: var(--text-muted); font-size: 13px; }
#statusEmptyState p:last-of-type { font-size: 11px; }
.status-result-link { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--card-border); }
.status-result-link .sub-title { margin: 0 0 5px; color: var(--text-muted); font-size: 12px; font-weight: 500; }
#videoLinkBox { overflow-wrap: anywhere; color: var(--text-dim); font-size: 12px; }
#right-history-panel .form-small { margin-bottom: 10px; }
.workspace-right .right-panel { animation: workbench-panel-enter 320ms var(--ease-enter) both; transition: border-color var(--duration-ui) var(--ease-ui), box-shadow var(--duration-ui) var(--ease-ui); }
.workspace-right .right-panel:nth-child(2) { animation-delay: 45ms; }
.workspace-right .right-panel:nth-child(3) { animation-delay: 90ms; }
.workspace-right .right-panel:hover { border-color: rgba(139, 92, 246, .26); box-shadow: 0 12px 34px rgba(0, 0, 0, .16); }
@keyframes workbench-panel-enter { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 640px) {
  .parameter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 10px; }
}
@media (max-width: 420px) {
  .parameter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .parameter-grid .pv-select-trigger { padding-inline: 8px; }
  .preview-panel-heading { gap: 8px; }
  .preview-panel-tag { font-size: 9px; }
  #statusVideoPreview .video-preview-placeholder { padding: 12px; }
}
/* Match the approved PixVerse workbench hierarchy without changing its theme. */
.workspace-left .panel:not(#videoToolsCard) > h2 { margin-bottom: 6px; }
.workspace .card { padding: 18px; }
#imageCard { padding-bottom: 19px; }
.workspace-left .panel-grid > .group-title { margin-top: 20px; margin-bottom: 8px; }
.workspace-left .panel-grid > .group-title:first-child { margin-top: 2px; }
#right-preview-panel .right-panel-subtitle { display: none; }
#imageCard #imgUploadBox { min-height: 148px; padding-block: 14px; }
#imageCard .form-small:has(#imgIdText) { margin-top: 2px; line-height: 1.2; }
#imageCard .panel-grid > .form-block + .group-title,
#imageCard .panel-grid > .form-label:has(#imgPrompt) + .group-title { margin-top: 8px; }
#imageCard .advanced-section-heading {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
#imageCard .advanced-section-heading > .group-title { min-width: 0; margin: 31px 0 0; }
#imageCard .optional-prompt-details {
  grid-column: auto;
  margin: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
}
#imageCard .optional-prompt-details > summary {
  min-height: 30px;
  padding: 5px 9px;
  border: 1px solid var(--card-border);
  border-radius: 7px;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}
#imageCard .optional-prompt-details[open] {
  grid-column: 1 / -1;
  padding: 8px 10px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,.018);
}
#imageCard .optional-prompt-details > .form-label { margin: 8px 0 0; }
#imageCard .optional-prompt-details textarea { min-height: 72px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.panel-subtitle {
  margin: 0 0 18px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
}
.right-panel-subtitle {
  margin: -10px 0 16px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
}
#textCard .panel-grid > .form-label:has(#txtPrompt),
#imageCard .panel-grid > .form-label:has(#imgPrompt),
#extendCard .panel-grid > .form-label:has(#extPrompt),
#transitionCard .panel-grid > .form-label:has(#transitionPrompt),
#fusionCard .panel-grid > .form-label:has(#fusionPrompt) {
  grid-column: 1 / -1;
  width: 100%;
  max-width: none;
}
#txtPrompt, #imgPrompt, #extPrompt, #transitionPrompt, #fusionPrompt { min-height: 100px; }
.workspace-left .panel-grid > .batch-slider-wrapper { grid-column: 1 / -1; width: 100%; }
.workspace-left .panel-grid > .batch-slider-wrapper {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 8px 12px;
}
.workspace-left .batch-slider-header { justify-content: flex-start; white-space: nowrap; }
.workspace-left .batch-slider-wrapper .slider-row { min-width: 0; gap: 10px; }
.workspace-left .batch-slider-wrapper .count-display-box { flex: 0 0 42px; }
.workspace-left .panel-grid > .form-actions {
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}
.workspace-left .panel-grid > .form-actions > .btn {
  width: 100%;
  min-height: 54px;
  justify-content: center;
  font-size: 14px;
}
.workspace-left .panel-grid > .form-actions .form-tip { margin: 0; }

#right-history-panel #historyEmpty {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  border: 0;
  background: transparent;
}
.history-empty-tile { min-width: 0; color: var(--text-dim); font-size: 11px; text-align: center; }
.history-empty-preview {
  display: grid;
  aspect-ratio: 1.65;
  margin-bottom: 7px;
  place-items: center;
  border: 1px solid var(--card-border);
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(56,189,248,.035), rgba(139,92,246,.055)), rgba(255,255,255,.018);
}
.history-empty-preview .pv-icon { width: 24px; height: 24px; color: rgba(129,150,212,.48); }
@media (max-width: 768px) {
  #right-history-panel #historyEmpty { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 360px) {
  .workspace-left .panel-grid > .batch-slider-wrapper { grid-template-columns: minmax(0, 1fr); }
}

/* Final responsive overrides: breakpoint against the combined app rail + work area. */
#right-preview-panel .preview-panel-heading p { display: none; }
#right-preview-panel { padding: 16px; }
.parameter-grid { row-gap: 4px; }
.parameter-grid > .form-row > .form-label,
.parameter-grid > .form-label { margin-bottom: 14px; }
.parameter-grid .pv-select-trigger { min-height: 38px; }
#right-preview-panel #statusVideoPreview { margin-top: 0; }
#right-status-panel .status-panel-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  margin-bottom: 18px;
}
#right-status-panel .status-panel-heading h2 { margin-bottom: 3px; }
#right-status-panel .status-panel-heading .right-panel-subtitle { margin: 0; }
#right-status-panel .status-query-details { align-self: start; }
#right-status-panel .status-query-details > summary {
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid rgba(139,92,246,.25);
  border-radius: 8px;
  color: var(--primary);
  font-size: 12px;
  white-space: nowrap;
  cursor: pointer;
  list-style: none;
}
#right-status-panel .status-query-details > summary::-webkit-details-marker { display: none; }
#right-status-panel .status-query-details > summary:hover { background: rgba(139,92,246,.08); }
#right-status-panel .status-query-details[open] { grid-column: 1 / -1; }
#right-status-panel .status-query-details .form-label { margin: 8px 0 0; }
#right-status-panel { padding: 16px; }
#right-status-panel #statusEmptyState { min-height: 96px; margin: 0; padding: 12px 12px 11px; }
#right-status-panel #statusEmptyState .status-empty-icon { margin-bottom: 4px; }
#imageCard .advanced-section-heading { margin-bottom: 15px; }
#imageCard .batch-slider-wrapper { margin-top: 6px; }
#imageCard .form-actions { margin-top: 32px; }
#imageCard .form-actions > .btn { min-height: 60px; }
#right-history-panel > h2 { margin-bottom: 12px; }
#right-history-panel { padding: 20px 20px 32px; }
#right-history-panel > .right-panel-subtitle { margin-bottom: 8px; }
#right-history-panel #historyEmpty { margin-top: 8px; }
#right-history-panel:has(#historyEmpty:not([style*="display: none"])) .history-footer-bar { display: none; }
@media (min-width: 871px) and (max-width: 1024px) {
  .workspace { padding: 18px; }
  .workspace .card { padding: 16px; }
}
@media (min-width: 871px) and (max-width: 1400px) {
  .parameter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 2200px) {
  .parameter-grid { grid-template-columns: repeat(3, minmax(0, 180px)) minmax(0, 1fr); }
  .workspace-left .panel-grid > .form-actions > .btn { max-width: 850px; }
}
/* A wide preview is constrained by both its natural 16:9 size and available
   viewport height, so intermediate heights do not cause abrupt layout jumps. */
@media (min-width: 1600px) {
  #right-preview-panel { container-type: inline-size; }
  #right-preview-panel #statusVideoPreview {
    height: min(42vh, 56.25cqw, 740px);
    aspect-ratio: auto;
  }
  #right-preview-panel #statusVideoPreview .video-preview-placeholder {
    height: 100%;
    aspect-ratio: auto;
  }
  #right-preview-panel #statusVideoPreview:has(.media-card) {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
  }
  #right-preview-panel #statusVideoPreview .media-card,
  #right-preview-panel #statusVideoPreview .media-card video {
    max-height: 100%;
  }
}
/* Compress history previews only while the natural four-column thumbnails
   would push the history card below the available desktop viewport. The
   width-aware thresholds keep the approved 1600x960 layout unchanged. */
@media (min-width: 1600px) and (max-width: 1699px) and (max-height: calc(40vw + 317px)),
       (min-width: 1700px) and (max-width: 1799px) and (max-height: calc(23vw + 606px)),
       (min-width: 1800px) and (max-width: 2199px) and (max-height: calc(14.5vw + 762px)),
       (min-width: 2200px) and (max-width: 2999px) and (max-height: calc(13vw + 794px)),
       (min-width: 3000px) and (max-height: calc(14.5vw + 762px)) {
  #right-history-panel .history-empty-preview {
    aspect-ratio: 2.5;
    margin-bottom: 4px;
  }
  #right-history-panel {
    padding: 16px 20px 12px;
  }
  #right-history-panel > h2 { margin-bottom: 8px; }
  #right-history-panel > .right-panel-subtitle { margin-bottom: 4px; }
  #right-history-panel #historyEmpty { margin-top: 6px; }
}
@media (min-width: 3000px) and (max-height: calc(14.5vw + 762px)) {
  #right-history-panel .history-empty-preview { aspect-ratio: 2.7; }
}
@media (max-width: 870px) {
  .workspace { grid-template-columns: minmax(0, 1fr); padding: 14px; gap: 14px; }
  .right-columns { grid-template-columns: minmax(0, 1fr); }
  .workspace .card { padding: 18px; }
}

/* Keep desktop form scrolling independent from the preview and task column. */
@media (min-width: 871px) {
  .workspace { --workspace-form-block-padding: clamp(14px, 1.125vw, 18px); }
  .workspace-left { min-height: 0; }
  .workspace-left .panel.card {
    max-height: calc(100dvh - var(--workspace-form-block-padding) - var(--workspace-form-block-padding));
    overflow-y: auto;
    overscroll-behavior-y: contain;
    scrollbar-gutter: stable;
  }
}
@media (min-width: 871px) and (max-width: 1024px) {
  .workspace { --workspace-form-block-padding: 18px; }
}