:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --surface-soft: #f2f4f7;
  --line: #e4e7ec;
  --line-strong: #cfd4dc;
  --text: #17191c;
  --subtext: #69707d;
  --accent: #17191c;
  --accent-text: #ffffff;
  --hover: #f2f4f7;
  --shadow-panel: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .05);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1115;
  --surface: #171a20;
  --surface-strong: #1d2128;
  --surface-soft: #22262e;
  --line: #2d323b;
  --line-strong: #424955;
  --text: #f4f6f8;
  --subtext: #9ba4b1;
  --accent: #f4f6f8;
  --accent-text: #111318;
  --hover: #22262e;
  --shadow-panel: 0 1px 2px rgba(0, 0, 0, .24), 0 10px 30px rgba(0, 0, 0, .2);
}

html[data-theme] { color: var(--text); background: var(--bg); }
html[data-theme] * { scrollbar-color: var(--line-strong) transparent; }
html[data-theme] *::-webkit-scrollbar-thumb { background: var(--line-strong); }
html[data-theme] body,
html[data-theme] .admin-page,
html[data-theme] .login-page {
  color: var(--text);
  background: var(--bg);
}
html[data-theme] body::before,
html[data-theme] body::after { display: none; }

html[data-theme] h1,
html[data-theme] h2,
html[data-theme] h3,
html[data-theme] strong { color: var(--text); text-shadow: none; }
html[data-theme] label,
html[data-theme] .prompt-head,
html[data-theme] .select-all,
html[data-theme] .detail,
html[data-theme] .hook,
html[data-theme] .hint,
html[data-theme] .eyebrow,
html[data-theme] .progress-count,
html[data-theme] .progress-head span,
html[data-theme] .progress-empty,
html[data-theme] .asset-meta,
html[data-theme] .asset-card-note,
html[data-theme] .account-card small { color: var(--subtext); }

html[data-theme] .side-nav {
  border-color: var(--line);
  background: var(--surface);
  box-shadow: none;
  backdrop-filter: none;
}
html[data-theme="light"] .side-nav-logo-base { filter: brightness(0); }
html[data-theme="dark"] .side-nav-logo-base { filter: brightness(0) invert(1); }
html[data-theme] .side-nav-logo-color { display: none; }
html[data-theme] .side-nav-item,
html[data-theme] .side-nav-link { color: var(--subtext); }
html[data-theme] .side-nav-item:hover,
html[data-theme] .side-nav-link:hover { color: var(--text); background: var(--hover); }
html[data-theme] .theme-toggle { margin-top: auto; }
html[data-theme] #accountShortcut { margin-top: 0 !important; }
html[data-theme] .theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

html[data-theme] .page-two.reverse-page {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: clamp(24px, 5vw, 72px);
  overflow: auto;
  background: var(--bg);
}
html[data-theme] .page-two.reverse-page[hidden] { display: none !important; }
html[data-theme].ui-preview :is(.single-video-workspace, .page-two.reverse-page) { min-height: 100vh; scrollbar-gutter: stable; }
html[data-theme] .reverse-shell { position: relative; display: flex; flex-direction: column; }
html[data-theme] .reverse-page-header { height: 38px; margin-bottom: 20px; visibility: visible; }
html[data-theme] .reverse-page-header h1 { position: relative; top: -6px; margin: 4px 0 0; font-size: 28px; }
html[data-theme] .reverse-reference-row { min-width: 0; display: flex; align-items: flex-start; gap: 6px; }
html[data-theme] .reverse-page.fission-mode .reverse-reference-row { display: none; }
html[data-theme] .fission-composer { display: none; }
html[data-theme] .reverse-page.fission-mode .reverse-composer { display: none; }
html[data-theme] .reverse-page.fission-mode .fission-composer {
  display: block;
}
html[data-theme] .fission-composer-main { grid-template-columns: minmax(0, 1fr) !important; }
html[data-theme] .fission-composer #fissionPrompt {
  width: 100%;
  min-height: 118px;
  max-height: 256px;
  padding: 0;
  overflow-y: auto;
  resize: none;
  field-sizing: content;
  color: var(--text);
  font: inherit;
  font-size: 10.5pt;
  line-height: 1.55;
  caret-color: currentColor;
  border: 0 !important;
  outline: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}
html[data-theme] .fission-composer-footer { gap: 12px; }
html[data-theme] #fissionComposer .fission-control-group { min-width: 0; padding-right: 250px; flex-wrap: nowrap; }
html[data-theme] .fission-status-control { max-width: 210px; color: var(--text); white-space: nowrap; }
html[data-theme] .fission-status-control > svg,
html[data-theme] #fissionModeButton > svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] .fission-status-control .fission-control-name,
html[data-theme] #fissionModeButton .fission-control-name { color: var(--subtext); }
html[data-theme] .fission-control-value { max-width: 118px; overflow: hidden; text-overflow: ellipsis; }
html[data-theme] .fission-status-control[aria-label$="待识别"] { opacity: .48; }
html[data-theme] .app #fissionProductStatus:not(:disabled):hover { border-color: var(--line-strong); background: var(--hover); }
html[data-theme] .fission-mode-control { min-width: 0; margin: 0; padding: 0; flex: 0 0 auto; border: 0; }
html[data-theme] #fissionModeButton { width: max-content; min-width: 160px; white-space: nowrap; }
html[data-theme] #fissionModeButton > span { flex: 0 0 auto; white-space: nowrap; }
html[data-theme] .fission-mode-panel { width: 330px; padding: 8px; display: grid; gap: 4px; }
html[data-theme] .fission-mode-panel[hidden] { display: none !important; }
html[data-theme] .fission-mode-panel label {
  position: relative;
  min-height: 54px;
  padding: 9px 10px;
  display: flex;
  align-items: center;
  cursor: pointer;
  border-radius: 9px;
  transition: background 160ms ease;
}
html[data-theme] .fission-mode-panel label:hover,
html[data-theme] .fission-mode-panel label:has(input:checked) { background: var(--hover); }
html[data-theme] .fission-mode-panel input { position: absolute; width: 1px; height: 1px; opacity: 0; }
html[data-theme] .fission-mode-panel label:has(input:focus-visible) { outline: 0; }
html[data-theme] .fission-mode-panel label > span { min-width: 0; display: grid; gap: 4px; text-align: left; }
html[data-theme] .fission-mode-panel strong { color: var(--text); font-size: 12px; font-weight: 600; }
html[data-theme] .fission-mode-panel small { color: var(--subtext); font-size: 11px; line-height: 1.45; }
html[data-theme] .fission-auto-status { position: absolute; right: 52px; max-width: 190px; margin: 0; overflow: hidden; color: var(--subtext); font-size: 11px; line-height: 16px; text-overflow: ellipsis; white-space: nowrap; }
html[data-theme] .fission-auto-status.error { color: var(--danger); }
html[data-theme] .visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; white-space: nowrap !important; border: 0 !important; }
@media (max-width: 760px) {
  html[data-theme] .fission-control-group { padding-right: 0; }
  html[data-theme] .fission-auto-status { width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}
html[data-theme] .fission-facts-dialog { width: min(680px, calc(100vw - 32px)); color: var(--text); border: 1px solid var(--line); background: var(--surface); }
html[data-theme] .fission-facts-dialog .settings { width: 100%; max-height: min(760px, calc(100vh - 48px)); gap: 10px; color: var(--text); background: var(--surface); }
html[data-theme] .fission-facts-dialog::backdrop { background: rgba(15, 17, 21, .56); backdrop-filter: blur(3px); }
html[data-theme] .fission-facts-dialog-summary { margin: 0; padding: 14px 16px; color: var(--text); font-size: 13px; line-height: 1.7; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); }
html[data-theme] #fissionFactsEditor { display: grid; gap: 10px; }
html[data-theme] #fissionFactsEditor[hidden] { display: none; }
html[data-theme] .fission-facts-help { margin: -4px 0 4px; color: var(--subtext); font-size: 12px; }
html[data-theme] .fission-facts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 12px; }
html[data-theme] .fission-facts-grid label { display: grid; gap: 6px; color: var(--text); font-size: 12px; }
html[data-theme] .fission-facts-grid label:last-child { grid-column: 1 / -1; }
html[data-theme] .fission-facts-dialog :is(input, textarea) { color: var(--text); border-color: var(--line); background: var(--surface-soft); }
html[data-theme] .fission-facts-dialog textarea { min-height: 74px; resize: vertical; }
@media (max-width: 640px) {
  html[data-theme] .fission-facts-grid { grid-template-columns: 1fr; }
  html[data-theme] .fission-facts-grid label:last-child { grid-column: auto; }
}
html[data-theme] .reverse-reference-item { min-width: 0; }
html[data-theme] :is(#reverseMaterialDropZone, .reverse-prompt-area) { position: relative; left: -3px; }
html[data-theme] .reverse-reference-upload { border: 1px dashed var(--line-strong); color: var(--text); cursor: pointer; }
html[data-theme] .reverse-reference-upload:hover { border-color: var(--text); background: var(--hover); }
html[data-theme] .reverse-media-preview { width: 100%; height: 100%; object-fit: cover; }
html[data-theme] .reverse-control { width: 174px; justify-content: flex-start; font-size: 12px; }
html[data-theme] .reverse-control > svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] .reverse-control > span { min-width: 0; flex: 1; justify-content: flex-start; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
html[data-theme] :is(#reverseModelButton, #fissionModelButton) { display: inline-grid; grid-template-columns: 15px minmax(0, 1fr) 15px; column-gap: 6px; }
html[data-theme] :is(#reverseModelButton, #fissionModelButton) > span { width: 100%; justify-content: center; text-align: center; }
html[data-theme] :is(#reverseModelButton, #fissionModelButton) > svg { justify-self: center; }
html[data-theme] .reverse-control .reverse-control-chevron { width: 14px; height: 14px; margin-left: auto; transition: transform 120ms ease; }
html[data-theme] .reverse-control[aria-expanded="true"] .reverse-control-chevron { transform: rotate(180deg); }
html[data-theme] .reverse-control-panel { width: 174px; box-sizing: border-box; padding: 4px; border-radius: 12px; }
html[data-theme] .reverse-control-panel[hidden] { display: none !important; }
html[data-theme] .page-two.reverse-page.history-active .reverse-control-panel { top: auto; bottom: calc(100% + 10px); }
html[data-theme] .page-two.reverse-page.history-active #reverseModelPanel { top: auto; bottom: calc(100% + 10px); }
html[data-theme] .page-two.reverse-page.history-active #reverseMentionPanel { top: auto; bottom: calc(100% + 10px); }
html[data-theme] .reverse-option-list { display: grid; gap: 2px; }
html[data-theme] .reverse-option-list button { width: 100%; min-height: 34px; padding: 0 10px; justify-content: flex-start; border: 0 !important; border-radius: 8px; font-size: 12px; text-align: left; background: transparent; box-shadow: none !important; }
html[data-theme] .reverse-option-list button:hover,
html[data-theme] .reverse-option-list button.active { background: var(--hover); }
html[data-theme] .reverse-duration-panel { width: 174px; }
html[data-theme] .reverse-duration-panel .reverse-option-list > button.active { background: transparent; }
html[data-theme] .reverse-duration-panel .reverse-option-list > button:hover { background: var(--hover); }
html[data-theme] .reverse-duration-input { width: 100%; height: 34px; min-height: 34px; box-sizing: border-box; margin: 0; padding: 0 10px; display: flex; align-items: center; justify-content: flex-start; color: var(--text); font-size: 12px; border: 0; border-radius: 8px; background: transparent; }
html[data-theme] .reverse-duration-input:hover,
html[data-theme] .reverse-duration-input:focus-within { background: var(--hover); }
html[data-theme] .reverse-duration-input input { width: 28px; padding: 0; color: inherit; font: inherit; text-align: left; border: 0 !important; outline: 0; background: transparent !important; box-shadow: none !important; appearance: textfield; }
html[data-theme] .reverse-duration-input input::-webkit-inner-spin-button,
html[data-theme] .reverse-duration-input input::-webkit-outer-spin-button { margin: 0; appearance: none; }
html[data-theme] .reverse-duration-input > span:not(.reverse-duration-stepper) { font-size: inherit; }
html[data-theme] .reverse-duration-stepper { display: none; flex-direction: column; margin-left: auto; }
html[data-theme] .reverse-duration-input:hover .reverse-duration-stepper,
html[data-theme] .reverse-duration-input:focus-within .reverse-duration-stepper { display: flex; }
html[data-theme] .reverse-duration-stepper button { width: 16px !important; min-height: 13px !important; height: 13px; padding: 0 !important; display: grid; place-items: center; border: 0 !important; border-radius: 3px; background: transparent !important; box-shadow: none !important; }
html[data-theme] .reverse-duration-stepper button:hover { background: transparent !important; }
html[data-theme] .reverse-duration-stepper svg { width: 9px; height: 6px; fill: none; stroke: currentColor; stroke-width: 1.5; }
html[data-theme] .page-two.reverse-page.history-active { align-items: flex-start; padding-bottom: 250px; }
html[data-theme] .reverse-history-view { width: min(1000px, 100%); margin: 0 auto; }
html[data-theme] .reverse-history-stage { min-height: 230px; display: grid; place-content: center; gap: 8px; text-align: center; }
html[data-theme] .reverse-history-stage > span { font-size: 13px; color: var(--subtext); }
html[data-theme] .reverse-history-stage > strong { font-size: 18px; font-weight: 500; color: var(--text); }
html[data-theme] .reverse-history-stage > small { color: var(--subtext); }
html[data-theme] .reverse-history-entry { grid-template-columns: minmax(0, 1fr); grid-template-areas: "copy"; }
html[data-theme] .reverse-history-entry .single-video-history-copy { padding-top: 0; gap: 4px; transform: translateX(2px); }
html[data-theme] .reverse-history-entry .single-video-history-copy p { height: auto; }
html[data-theme] .reverse-history-entry .single-video-history-copy p > span { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 10; }
html[data-theme] .fission-history-entry .single-video-history-copy p > span { -webkit-line-clamp: 5; }

html[data-theme] :is(#singleVideoPrompt, #reverseMaterialPrompt, #fissionPrompt) { overscroll-behavior: contain; }
html[data-theme] .reverse-history-entry .single-video-history-copy p:hover > span { position: static; width: auto; padding: 0; overflow: hidden; color: inherit; background: transparent; box-shadow: none; }
html[data-theme] .reverse-history-actions { grid-area: auto; align-items: center; justify-content: flex-start; margin-top: 4px; }
html[data-theme] .fission-history-check { width: 16px; height: 16px; margin: 0 4px; flex: 0 0 auto; }
html[data-theme].ui-preview .fission-history-batch-actions { position: fixed; bottom: 24px; left: 87px; width: 206px; height: 34px; box-sizing: border-box; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; overflow: hidden; color: var(--text); border: 1px solid transparent; border-radius: 9px; background: var(--surface); box-shadow: none; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed .fission-history-batch-actions { position: static; width: 100%; margin: 10px 0 0; }
html[data-theme].ui-preview #fissionHistoryBatchActions button { position: relative; width: 100%; height: 34px; min-height: 34px; padding: 0 12px; display: flex; align-items: center; justify-content: center; color: var(--text); border: 0; border-radius: 0; background: transparent; box-shadow: none; }
html[data-theme].ui-preview #fissionHistoryBatchActions button:hover,
html[data-theme].ui-preview #fissionHistoryBatchActions button:focus-visible { background: transparent; outline: 0; }
html[data-theme].ui-preview #fissionHistoryBatchActions button::after { content: ""; position: absolute; inset: 3px; border-radius: 5px; background: var(--hover); opacity: 0; }
html[data-theme].ui-preview #fissionHistoryBatchActions button:hover::after,
html[data-theme].ui-preview #fissionHistoryBatchActions button:focus-visible::after { opacity: 1; }
html[data-theme] #fissionHistoryBatchActions :is(svg, span) { position: relative; z-index: 1; }
html[data-theme] #fissionHistoryBatchActions svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] #fissionHistoryClearSelection svg { fill: currentColor; stroke: none; }
html[data-theme] .fission-batch-dialog { width: min(620px, calc(100vw - 32px)); padding: 0; overflow: visible; background: transparent; box-shadow: none; backdrop-filter: none; }
html[data-theme] .fission-batch-dialog .settings { max-height: none; gap: 14px; padding: 18px; overflow: visible; scrollbar-gutter: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-soft); box-shadow: var(--shadow-panel); }
html[data-theme] .fission-batch-summary { margin: 0; color: var(--subtext); font-size: 13px; }
html[data-theme] .fission-batch-shared-controls { min-height: 34px; padding: 0; flex-wrap: wrap; align-content: center; }
html[data-theme] .fission-batch-shared-controls .single-video-control { background: var(--surface); }
html[data-theme] .fission-batch-shared-controls :is(.single-video-count-label, .single-video-count-row) { display: none; }
html[data-theme] .fission-batch-shared-controls #singleVideoFormatButton :is(i:last-of-type, span:last-child) { display: none; }
html[data-theme] .fission-batch-shared-controls .single-video-popover { top: calc(100% + 10px); bottom: auto; }
html[data-theme] .fission-batch-footer { min-height: 38px; display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
html[data-theme] .fission-batch-footer .dialog-status { min-width: 0; margin: 0 auto 0 0; }
html[data-theme] .fission-batch-footer .dialog-status:empty { display: none; }
html[data-theme].ui-preview .fission-batch-points-cost { position: static; color: var(--subtext); }
html[data-theme].ui-preview .fission-batch-confirm { position: static; flex: 0 0 38px; }
html[data-theme] .reverse-history-assets { width: max-content; min-height: 62px; display: flex; align-items: center; padding-inline: 6px; }
html[data-theme] .reverse-history-assets > :is(video, img) { width: 48px; height: 48px; display: block; object-fit: cover; border: 2px solid var(--surface); border-radius: 2px; box-shadow: 0 3px 10px rgba(15, 23, 42, .14); transform: rotate(-7deg); }
html[data-theme] .reverse-history-assets > :is(video, img) + :is(video, img) { margin-left: -8px; transform: rotate(5deg); }
html[data-theme] .fission-history-entry .reverse-history-assets .thumb { width: 48px; height: 48px; flex: 0 0 48px; margin: 0; overflow: hidden; border: 2px solid var(--surface); border-radius: 2px; background: var(--surface-soft); box-shadow: 0 3px 10px rgba(15, 23, 42, .14); transform: rotate(var(--fan-fold-angle)); transform-origin: 50% 100%; z-index: calc(var(--fan-order) + 1); }
html[data-theme] .fission-history-entry .reverse-history-assets .thumb + .thumb { margin-left: -18px; }
html[data-theme] .fission-history-entry .reverse-history-assets .thumb :is(video, img, .single-video-media-icon) { width: 100%; height: 100%; display: grid; object-fit: cover; place-items: center; border: 0; border-radius: 0; box-shadow: none; transform: none; }
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] { max-height: calc(100vh - 24px); background: transparent; box-shadow: none; }
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] .prompt-editor-dialog {
  position: relative;
  width: min(1000px, calc(100vw - 40px));
  height: min(760px, calc(100vh - 32px));
  min-height: 0;
  max-height: none;
  padding: 18px;
  display: block;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] .library-head { display: none; }
html[data-theme] .expanded-material-upload-zone { display: contents; }
html[data-theme] .expanded-material-upload-zone[hidden] { display: none !important; }
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] .expanded-prompt-composer-main { height: min(650px, calc(100vh - 142px)); min-height: 0; }
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] #expandedMaterialPrompt { height: 100%; min-height: 0; font-size: 10.5pt; }
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] #expandedMaterialPrompt::placeholder { color: #aeb3b9; opacity: 1; }
html[data-theme] #expandedPromptDialog[data-context="fissionHistory"] #expandedMaterialRefs { top: auto; right: auto; bottom: 62px; left: 18px; transform: none; }
html[data-theme] .page-two.reverse-page.history-active .reverse-shell {
  position: fixed;
  z-index: 10;
  right: clamp(24px, 5vw, 72px);
  bottom: 24px;
  left: calc(308px + clamp(24px, 5vw, 72px));
  top: auto;
  width: auto;
  transform: none;
}
html[data-theme] .page-two.reverse-page.history-active .reverse-page-header { display: none; }
html[data-theme] .page-two.reverse-page.history-active .reverse-composer { width: 100%; box-sizing: border-box; }
html[data-theme] .page-two.reverse-page.history-active .fission-composer { width: 100%; box-sizing: border-box; transform: translateX(0); }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .single-video-back-to-bottom { right: 20%; left: auto; display: inline-flex; transform: translateX(-5px); }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-composer {
  width: 60%; height: 87.2px; margin-inline: auto; padding: 6px 14px 10px; transform: translateX(-5px);
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-composer-main {
  position: absolute; top: 50%; right: 64px; left: 14px; grid-template-columns: auto minmax(0, 1fr); align-items: center; transform: translateY(-50%);
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-reference-row {
  align-self: center; transform: translate(-6px, -3px) scale(.75); transform-origin: left center;
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-source-reference { position: relative; left: 2px; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-prompt-area { align-self: center; overflow: hidden; transform: translateX(-45px); }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed #reverseMaterialPrompt {
  height: 24px; min-height: 24px; max-height: 24px; padding: 0; overflow: hidden; line-height: 24px; white-space: nowrap; text-overflow: ellipsis; opacity: 0;
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-prompt-area::after { content: attr(data-collapsed-preview); position: absolute; inset: 0; height: 24px; overflow: hidden; color: var(--subtext); font-size: 10.5pt; line-height: 24px; white-space: nowrap; text-overflow: ellipsis; pointer-events: none; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-composer-footer {
  position: absolute; top: 50%; right: 14px; bottom: auto; min-height: 38px; margin: 0; transform: translateY(-50%);
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-control-group { display: none; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .reverse-submit { position: static; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .fission-composer {
  width: 60%; height: 87.2px; margin-inline: auto; padding: 6px 14px 10px; transform: translateX(0);
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .fission-composer-main {
  position: absolute; top: 50%; right: 64px; left: 14px; display: block; margin: 0; transform: translateY(-50%);
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .fission-composer .single-video-prompt-block { position: relative; height: 24px; margin: 0; overflow: hidden; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed #fissionPrompt {
  height: 24px; min-height: 24px; max-height: 24px; padding: 0; overflow: hidden; line-height: 24px; white-space: nowrap; text-overflow: ellipsis; opacity: 0;
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .fission-composer .single-video-prompt-block::after { content: attr(data-collapsed-preview); position: absolute; inset: 0; height: 24px; overflow: hidden; color: var(--subtext); font-size: 10.5pt; line-height: 24px; white-space: nowrap; text-overflow: ellipsis; pointer-events: none; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .fission-composer-footer {
  position: absolute; top: 50%; right: 14px; bottom: auto; min-height: 38px; margin: 0; transform: translateY(-50%);
}
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed :is(.fission-control-group, .fission-auto-status) { display: none; }
html[data-theme] .page-two.reverse-page.history-active.composer-collapsed .fission-submit { position: static; }
html[data-theme] .app.creation-sidebar-collapsed .page-two.reverse-page.history-active .reverse-shell { left: calc(72px + clamp(24px, 5vw, 72px)); }

@media (max-width: 760px) {
  html[data-theme] .page-two.reverse-page { padding: 28px 16px 48px; }
  html[data-theme] .reverse-reference-row { justify-content: center; }
  html[data-theme] .page-two.reverse-page.history-active .reverse-shell { right: 16px; bottom: 16px; left: 76px; }
}

@media (min-width: 761px) {
  html[data-theme] .reverse-shell { transform: translate(-2px, -8vh); }
}
html[data-theme] .workspace-column,
html[data-theme] .tool-page { border-color: var(--line); background: var(--bg); backdrop-filter: none; }
html[data-theme] .panel,
html[data-theme] .item,
html[data-theme] .progress-item,
html[data-theme] .prompt-library-item,
html[data-theme] .mention-panel,
html[data-theme] .library-context-menu,
html[data-theme] dialog,
html[data-theme] .tool-page-header,
html[data-theme] .tool-page-toolbar,
html[data-theme] .resource-card,
html[data-theme] .prompt-page-card,
html[data-theme] .tool-card,
html[data-theme] .account-card,
html[data-theme] .admin-panel,
html[data-theme] .admin-dialog {
  color: var(--text);
  border-color: var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-panel);
  backdrop-filter: none;
}
html[data-theme] .item:hover,
html[data-theme] .progress-item:hover,
html[data-theme] .resource-card:hover,
html[data-theme] .prompt-page-card:hover,
html[data-theme] .tool-card:hover { border-color: var(--line-strong); background: var(--surface); box-shadow: var(--shadow-panel); }

html[data-theme] input,
html[data-theme] textarea,
html[data-theme] select,
html[data-theme] .login-card input,
html[data-theme] .admin-dialog input {
  color: var(--text);
  border-color: var(--line);
  background: var(--surface);
  box-shadow: none;
}
html[data-theme] input::placeholder,
html[data-theme] textarea::placeholder { color: var(--subtext); }
html[data-theme] input:focus,
html[data-theme] textarea:focus,
html[data-theme] select:focus,
html[data-theme] .login-card input:focus {
  color: var(--text);
  border-color: var(--line);
  background: var(--surface);
  box-shadow: none;
}
html[data-theme] :focus-visible { outline: 0; }
html[data-theme] input:focus-visible,
html[data-theme] textarea:focus-visible,
html[data-theme] select:focus-visible { outline: 0; }
html[data-theme] :is(.login-page, .login-dialog, .user-center, .admin-page) :is(input, textarea, select):is(:focus, :focus-visible) {
  border-color: var(--line);
  outline: 0;
  box-shadow: 0 0 0 2px #c76ff5;
}

html[data-theme] .app button:not(.upload-box),
html[data-theme] .app .side-nav-link,
html[data-theme] .app .asset-download,
html[data-theme] .login-page button,
html[data-theme] .admin-page button,
html[data-theme] .landing-page button {
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: none;
  font-weight: 600;
}
html[data-theme] .app button:not(.upload-box):hover,
html[data-theme] .app .side-nav-link:hover,
html[data-theme] .app .asset-download:hover,
html[data-theme] .login-page button:hover,
html[data-theme] .admin-page button:hover,
html[data-theme] .landing-page button:hover { color: var(--text); border-color: var(--line-strong); background: var(--hover); box-shadow: none; filter: none; }
html[data-theme] .app .user-center-tabs button {
  color: var(--subtext);
  border: 0;
  outline: 0;
  background: transparent;
  box-shadow: none;
}
html[data-theme] .app .user-center,
html[data-theme] .app .user-center * { font-size: 10.5pt; font-weight: 400; }
html[data-theme] .app .user-center h1 { font-size: 28px; font-weight: 700; }
html[data-theme] .app .user-center .user-points-balance strong { font-size: 42px; font-weight: 700; }
html[data-theme] .app .user-center-tabs button:is(:hover, :focus-visible, .active) {
  color: var(--text);
  border: 0;
  background: var(--hover);
  box-shadow: none;
}
html[data-theme] .app .user-center .account-password input:is(:focus, :focus-visible) {
  border: 1px solid var(--line);
  outline: 0;
  background: var(--surface-strong);
  box-shadow: 0 0 0 2px #c76ff5;
}
html[data-theme] .app button.primary,
html[data-theme] .login-page .login-submit,
html[data-theme] .admin-page button[type="submit"] { color: var(--accent-text); border-color: var(--accent); background: var(--accent); }
html[data-theme] .app button.danger,
html[data-theme] .admin-page button.danger { color: #fff; border-color: #d92d20; background: #d92d20; }
html[data-theme] .app .asset-page .resource-actions > :is(button, .asset-download) {
  color: var(--text);
  border: 0;
  outline: 0;
  background: transparent;
  box-shadow: none;
  filter: none;
}
html[data-theme] .app .asset-page .resource-actions > :is(button, .asset-download):is(:hover, :focus-visible) {
  color: var(--text);
  border: 0;
  outline: 0;
  background: var(--hover);
  box-shadow: none;
  filter: none;
}

html[data-theme] .app .asset-page { font-weight: 400; }
html[data-theme] .app .asset-page :is(h2, strong, button, a, summary) { font-weight: 400; }
html[data-theme] .app .asset-page .asset-page-header {
  padding: 14px 24px;
  gap: 10px;
}
html[data-theme] .app .asset-page .asset-page-header h1 {
  margin: 0;
  font-weight: 700;
}
html[data-theme] .app .asset-page .asset-tabs {
  width: 100%;
  height: 40px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
html[data-theme] .app .asset-page .asset-tabs button,
html[data-theme] .app .asset-page .asset-tabs button.active {
  height: 40px;
  min-height: 40px;
  color: var(--text);
  border: 0;
  outline: 0;
  background: var(--surface-soft);
  box-shadow: none;
  filter: none;
  font-weight: 400;
}
html[data-theme] .app .asset-page .asset-tabs button:is(:hover, :focus-visible) {
  color: var(--text);
  border: 0;
  outline: 0;
  background: color-mix(in srgb, var(--text) 18%, var(--surface));
  box-shadow: none;
  filter: none;
}
html[data-theme] .app .side-nav-item.active,
html[data-theme] .app .library-tabs button.active,
html[data-theme] .admin-data-tabs button.active { color: var(--accent-text); border-color: var(--accent); background: var(--accent); box-shadow: none; }
html[data-theme] .app .asset-page .asset-tabs button,
html[data-theme] .app .asset-page .asset-tabs button.active,
html[data-theme] .app .asset-page .asset-add-actions button {
  color: var(--text);
  border: 0;
  outline: 0;
  background: transparent;
  box-shadow: none;
  filter: none;
}
html[data-theme] .app .asset-page .asset-tabs button:is(:hover, :focus-visible, .active) { background: var(--hover); }
html[data-theme] .app .asset-page .asset-add-actions button:is(:hover, :focus-visible) { background: #d1d5db; }

html[data-theme] .upload-box,
html[data-theme] .app button.upload-box,
html[data-theme] .app button.upload-box:hover,
html[data-theme] .app button.upload-box.dragging {
  color: var(--text);
  border: 1px dashed var(--line-strong);
  background: var(--surface);
  box-shadow: none;
}
html[data-theme] .upload-box span { color: var(--subtext); }
html[data-theme] .app button.single-video-upload:hover { border-color: var(--text); background: var(--hover); }
html[data-theme] .thumb,
html[data-theme] .pick-thumb,
html[data-theme] .asset-page .resource-card img,
html[data-theme] .asset-page .asset-media-preview { border-color: var(--line); background: var(--surface-soft); }
html[data-theme] .pick-selected { border-color: var(--text); box-shadow: 0 0 0 2px var(--text); }
html[data-theme] .tag,
html[data-theme] .video-result,
html[data-theme] .mention-row,
html[data-theme] .mention-library-item,
html[data-theme] .prompt-library-item { color: var(--text); background: var(--surface-soft); }
html[data-theme] dialog::backdrop { background: rgba(15, 17, 21, .48); backdrop-filter: blur(3px); }

html[data-theme] .login-card {
  color: var(--text);
  border-color: var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-panel);
  backdrop-filter: none;
}
html[data-theme="dark"] .login-logo { filter: invert(1); }
html[data-theme] .login-card label,
html[data-theme] .login-subtitle { color: var(--subtext); }
html[data-theme] .login-dialog button { color: var(--text); border-color: var(--line); background: var(--surface); }
html[data-theme] .login-dialog button:hover { border-color: var(--line-strong); background: var(--hover); }
html[data-theme] .login-dialog button.primary { color: var(--accent-text); border-color: var(--accent); background: var(--accent); }
html[data-theme] .login-dialog { width: min(760px, calc(100vw - 32px)); max-height: calc(100vh - 32px); border-radius: 22px; }
html[data-theme] .login-dialog .login-card { width: 100%; padding: 0; display: grid; grid-template-columns: 300px 1fr; border: 0; border-radius: inherit; overflow: hidden; }
html[data-theme] .login-brand-panel { position: relative; min-height: 450px; margin: 0; overflow: hidden; background: #0a1d35; }
html[data-theme] .login-brand-poster { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: cover; }
html[data-theme] .login-form-panel { position: relative; min-width: 0; margin: 0; padding: 42px 40px 30px; box-sizing: border-box; color: #191b1f; background: #f8f9fa; }
html[data-theme] .login-close { position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; padding: 0; display: grid; place-items: center; color: #5e636b; border: 0; border-radius: 50%; font-size: 24px; line-height: 1; background: transparent; }
html[data-theme] .login-dialog .login-close:hover { border: 0; background: #eceff1; }
html[data-theme] .login-heading { margin-bottom: 22px; }
html[data-theme] .login-heading h2 { margin: 0 0 6px; color: #17191d; font-size: 24px; text-shadow: none; }
html[data-theme] .login-heading p { margin: 0; color: #8a9099; font-size: 13px; }
html[data-theme] .login-dialog form { gap: 9px; }
html[data-theme] .login-dialog label { margin-top: 3px; color: #24272c; font-size: 12px; font-weight: 600; }
html[data-theme] .login-field { min-height: 44px; display: flex; align-items: center; gap: 8px; padding: 0 14px; border: 1px solid #dfe3e7; border-radius: 14px; background: #f4f5f6; }
html[data-theme] .login-field:focus-within { border-color: #dfe3e7; box-shadow: 0 0 0 2px #c76ff5; }
html[data-theme] .login-field > span { width: 16px; color: #90969d; }
html[data-theme] .login-field svg { display: block; width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] .login-field input { min-width: 0; padding: 0; color: #17191d; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
html[data-theme] .login-field input:focus, html[data-theme] .login-field input:focus-visible { border: 0; outline: 0; background: transparent; box-shadow: none; }
html[data-theme] .login-field input::placeholder { color: #aeb3b9; }
html[data-theme] .login-dialog .login-submit { min-height: 46px; margin-top: 8px; color: #fff; border: 0; border-radius: 14px; background: #17191d; }
html[data-theme] .login-dialog .login-submit:hover { color: #fff; border: 0; background: #2b2e33; }
html[data-theme] .login-account-note { margin: 8px 0 0; color: #9399a1; font-size: 12px; text-align: center; }
html[data-theme] .login-account-note a { color: inherit; text-underline-offset: 2px; }
html[data-theme] .login-account-note a:hover { color: var(--text); }
html[data-theme] body.auth-guest :is(#assetShortcut, #pointsBadge, #redeemCodeDialog, #accountShortcut, #adminShortcut, [data-workspace="assets"], [data-workspace="account"]) { display: none !important; }
html[data-theme] #loginShortcut.logout .nav-icon { transform: scaleX(-1); }
html[data-theme="dark"] .login-form-panel { background: #17191d; }
html[data-theme="dark"] .login-heading h2, html[data-theme="dark"] .login-dialog label { color: #f5f6f7; }
html[data-theme="dark"] .login-field { border-color: #34383e; background: #202329; }
html[data-theme="dark"] .login-field input { color: #f5f6f7; }
html[data-theme="dark"] .login-dialog .login-submit { color: #17191d; background: #f4f5f6; }
html[data-theme="dark"] .login-dialog .login-submit:hover { color: #17191d; background: #fff; }
@media (max-width: 680px) {
  html[data-theme] .login-dialog { width: min(430px, calc(100vw - 24px)); }
  html[data-theme] .login-dialog .login-card { grid-template-columns: 1fr; }
  html[data-theme] .login-brand-panel { display: none; }
  html[data-theme] .login-form-panel { padding: 42px 24px 26px; }
}
html[data-theme] .login-kicker,
html[data-theme] .admin-header p,
html[data-theme] .tool-page-kicker { color: var(--text) !important; }
html[data-theme] .admin-header a { color: var(--text); }
html[data-theme] .admin-header > a { margin-left: auto; }

html[data-theme] .legal-page { min-height: 100vh; margin: 0; color: var(--text); background: var(--bg); font: 14px/1.8 system-ui, -apple-system, "Segoe UI", sans-serif; }
html[data-theme] .legal-header { position: sticky; top: 0; z-index: 2; height: 64px; padding: 0 max(24px, calc((100vw - 1120px) / 2)); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(12px); }
html[data-theme] .legal-header img { display: block; width: 116px; max-height: 34px; object-fit: contain; }
html[data-theme="dark"] .legal-header img { filter: invert(1); }
html[data-theme] .legal-back { color: var(--subtext); text-decoration: none; }
html[data-theme] .legal-back:hover { color: var(--text); }
html[data-theme] .legal-layout { width: min(1120px, calc(100% - 48px)); margin: 32px auto 80px; display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 28px; }
html[data-theme] .legal-nav { position: sticky; top: 96px; height: fit-content; padding: 10px; display: grid; gap: 4px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
html[data-theme] .legal-nav a { padding: 9px 12px; color: var(--subtext); border-radius: 10px; text-decoration: none; }
html[data-theme] .legal-nav a:hover { color: var(--text); background: var(--hover); }
html[data-theme] .legal-content { min-width: 0; display: grid; gap: 24px; }
html[data-theme] .legal-notice { margin: 0; padding: 14px 18px; color: var(--subtext); border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
html[data-theme] .legal-document { scroll-margin-top: 88px; padding: clamp(26px, 5vw, 56px); border: 1px solid var(--line); border-radius: 20px; background: var(--surface); box-shadow: var(--shadow); }
html[data-theme] .legal-document h1 { margin: 0 0 4px; font-size: 28px; line-height: 1.35; }
html[data-theme] .legal-document h2 { margin: 32px 0 8px; font-size: 18px; line-height: 1.5; }
html[data-theme] .legal-document p { margin: 10px 0; color: var(--text); }
html[data-theme] .legal-document ol { margin: 8px 0; padding-left: 24px; }
html[data-theme] .legal-document li + li { margin-top: 6px; }
html[data-theme] .legal-document .legal-meta { margin: 0 0 28px; color: var(--subtext); font-size: 12px; }
@media (max-width: 760px) {
  html[data-theme] .legal-layout { width: min(100% - 24px, 680px); margin-top: 16px; grid-template-columns: 1fr; gap: 14px; }
  html[data-theme] .legal-nav { position: static; grid-template-columns: 1fr; }
  html[data-theme] .legal-document { padding: 24px 20px; border-radius: 16px; }
}
html[data-theme] .admin-header .theme-toggle { margin-left: 12px; padding: 8px 12px; display: inline-flex; align-items: center; gap: 7px; border-radius: 8px; }
html[data-theme] .login-page > .theme-toggle { position: fixed; top: 18px; right: 18px; padding: 9px 13px; display: inline-flex; align-items: center; gap: 7px; border-radius: 9px; }

html[data-theme].ui-preview .single-video-heading h1,
html[data-theme].ui-preview .single-video-section-head,
html[data-theme].ui-preview .single-video-mention-item { color: var(--text); }
html[data-theme].ui-preview .single-video-form,
html[data-theme].ui-preview .single-video-popover {
  border-color: var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-panel);
}
html[data-theme].ui-preview .single-video-option-row,
html[data-theme].ui-preview .single-video-duration-value { color: var(--text); border-color: var(--line); background: var(--surface-soft); }
html[data-theme].ui-preview .single-video-format-button > i { background: var(--line-strong); }
html[data-theme].ui-preview .single-video-character-count,
html[data-theme].ui-preview .single-video-points-cost,
html[data-theme].ui-preview .single-video-format-panel > span,
html[data-theme].ui-preview .single-video-duration-panel > span,
html[data-theme].ui-preview .single-video-upload-icon,
html[data-theme].ui-preview .single-video-upload small { color: var(--subtext); }
html[data-theme].ui-preview .single-video-points-cost strong { color: inherit; }
html[data-theme].ui-preview .single-video-mention-item img,
html[data-theme].ui-preview .single-video-mention-item video,
html[data-theme].ui-preview .single-video-media-icon { color: var(--text); background: var(--surface-soft); }

html[data-theme] .landing-page { color: var(--text); background: var(--bg); }
html[data-theme] .landing-page .topbar { border-color: var(--line); }
html[data-theme] .landing-page .brand,
html[data-theme] .landing-page .intro,
html[data-theme] .landing-page footer { color: var(--subtext); }
html[data-theme] .landing-page .brand img { filter: brightness(0); }
html[data-theme="dark"] .landing-page .brand img { filter: brightness(0) invert(1); }
html[data-theme] .landing-page .eyebrow { color: var(--text); }
html[data-theme] .landing-page .primary { color: var(--accent-text); border-color: var(--accent); background: var(--accent); box-shadow: none; }
html[data-theme] .landing-page .secondary { color: var(--text); border-color: var(--line); background: var(--surface); backdrop-filter: none; }
html[data-theme] .landing-page .holo-stage { background: none; mask-image: none; transform: none; }
html[data-theme] .landing-page .holo-frame,
html[data-theme] .landing-page .capabilities article { color: var(--text); border-color: var(--line); background: var(--surface); box-shadow: var(--shadow-panel); }
html[data-theme] .landing-page .holo-ring,
html[data-theme] .landing-page .stage-core,
html[data-theme] .landing-page .particle { display: none; }
html[data-theme] .landing-page .theme-toggle { padding: 8px 12px; display: inline-flex; align-items: center; gap: 7px; color: var(--text); border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }

/* 窄竖栏导航：主入口图标在上，工具入口只保留图标。 */
html[data-theme] .app { --navigation-top-offset: 36px; padding-left: 88px; }
html[data-theme] .side-nav {
  width: 72px;
  padding: var(--navigation-top-offset) 4px 12px;
  align-items: center;
  gap: 6px;
}
html[data-theme] .side-nav-logo {
  width: 64px;
  height: 96px;
  margin: 0 auto 36px;
  overflow: hidden;
  background: transparent;
  transform: translateY(-11px);
}
html[data-theme] .side-nav-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(1.2);
}
html[data-theme="light"] .side-nav-logo-base { filter: none; }
html[data-theme="dark"] .side-nav-logo-base { filter: invert(1); }
html[data-theme] .app .side-nav .side-nav-item,
html[data-theme] .app .side-nav .side-nav-link {
  width: 56px;
  min-height: 60px;
  margin: 0;
  padding: 7px 4px;
  flex: 0 0 auto;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  color: var(--text);
  border: 0;
  border-radius: 10px;
  background: transparent;
  box-shadow: none;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.1;
}
html[data-theme] .app .side-nav .side-nav-item:hover,
html[data-theme] .app .side-nav .side-nav-link:hover { color: var(--text); background: var(--hover); box-shadow: none; }
html[data-theme] .app .side-nav .side-nav-item.active { color: #c76ff5; border: 0; background: transparent; box-shadow: none; }
html[data-theme] .app .side-nav :is(#accountShortcut, #adminShortcut).active .nav-icon { color: var(--text); }
html[data-theme] .side-nav .nav-icon { width: 22px; height: 22px; filter: none; }
html[data-theme] .side-nav .nav-icon-fill { fill: currentColor; stroke: none; }
html[data-theme] .side-nav .nav-icon-deconstruct {
  display: block;
  background: currentColor;
  -webkit-mask: url("./assets/deconstruct-icon-mask.png") center / contain no-repeat;
  mask: url("./assets/deconstruct-icon-mask.png") center / contain no-repeat;
}
html[data-theme] .side-nav .nav-icon-fission {
  display: block;
  background: currentColor;
  -webkit-mask: url("./assets/fission-icon-mask.png") center / contain no-repeat;
  mask: url("./assets/fission-icon-mask.png") center / contain no-repeat;
}
html[data-theme] .side-nav .side-nav-utility {
  width: 44px !important;
  min-height: 44px !important;
  padding: 0 !important;
  border-radius: 10px !important;
}
html[data-theme] .side-nav .side-nav-utility span { display: none; }
html[data-theme] .app button.side-nav-points {
  width: max-content;
  min-width: 44px;
  max-width: 60px;
  height: 54px;
  box-sizing: border-box;
  padding: 7px 5px 6px;
  margin-top: auto;
  align-self: center;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: #c76ff5;
  border: 1px solid #c76ff5;
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
}
html[data-theme] .app button.side-nav-points:hover { color: #b85ce9; border-color: #b85ce9; background: #faf1fe; }
html[data-theme] .side-nav-points-value { display: inline-flex; align-items: center; justify-content: center; gap: 1px; white-space: nowrap; }
html[data-theme] .side-nav-points svg { width: 12px; height: 12px; flex: 0 0 12px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] .side-nav-points strong { min-width: 0; color: #c76ff5; font-size: 11px; font-weight: 500; font-variant-numeric: tabular-nums; line-height: 1; white-space: nowrap; }
html[data-theme] .side-nav-points-label { font-size: 11px; line-height: 1; text-align: center; }
html[data-theme] .side-nav .theme-toggle { margin-top: 0 !important; }
html[data-theme] #accountShortcut { margin-top: 0 !important; }

html[data-theme] .redeem-code-dialog {
  width: min(572px, calc(100vw - 32px));
  padding: 0;
  overflow: hidden;
  color: var(--text);
  border: 0;
  border-radius: 20px;
  background: var(--surface);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .28);
}
html[data-theme] .redeem-code-dialog::backdrop { background: rgba(18, 20, 23, .58); backdrop-filter: blur(3px); }
html[data-theme] .redeem-code-card { position: relative; margin: 0; padding: 17px 24px 22px; }
html[data-theme] .redeem-code-close { position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; min-height: 0; padding: 0; display: grid; place-items: center; color: var(--subtext); border: 0; border-radius: 50%; font-size: 23px; line-height: 1; background: transparent; }
html[data-theme] .redeem-code-close:hover { color: var(--text); border: 0; background: var(--surface-soft); }
html[data-theme] .redeem-code-card h2 { margin: 0 0 24px; font-size: 21px; line-height: 1.2; text-align: center; }
html[data-theme] .redeem-code-box { padding: 12px 16px 0; border: 1px solid var(--line); border-radius: 20px; background: var(--surface-soft); }
html[data-theme] .redeem-code-card label { display: block; margin: 0 0 8px; padding: 0; color: var(--text); font-size: 13px; font-weight: 600; }
html[data-theme] .redeem-code-row { display: flex; align-items: center; gap: 8px; }
html[data-theme] .redeem-code-card input { min-width: 0; flex: 1; min-height: 38px; box-sizing: border-box; padding: 0 12px; color: var(--text); border: 1px solid #c76ff5; border-radius: 16px; background: var(--surface-strong); outline: none; font-size: 13px; }
html[data-theme] .redeem-code-card input:focus { border-color: #c76ff5; box-shadow: none; }
html[data-theme] .redeem-code-card .dialog-status { min-height: 16px; margin: 4px 0 0; font-size: 12px; }
html[data-theme] .redeem-code-card .dialog-status.success { color: #c76ff5; }
html[data-theme] .redeem-code-card .primary { width: 60px; min-height: 38px; padding: 0; display: inline-flex; align-items: center; justify-content: center; color: #fff; border: 0; border-radius: 16px; background: #c76ff5; font-size: 13px; line-height: 1; }
html[data-theme] .redeem-code-card .primary:hover { color: #fff; border: 0; background: #b85ce9; }
html[data-theme].ui-preview .single-video-workspace { grid-column: 1 / -1; }

html[data-theme].ui-preview .single-video-heading h1 { font-size: 28px; }
html[data-theme].ui-preview .single-video-form { padding-top: 2px; }
html[data-theme].ui-preview :is(#singleVideoPrompt, #reverseMaterialPrompt) {
  width: 100%;
  font-size: 10.5pt;
  min-height: 118px;
  max-height: 256px;
  padding-top: 0;
  overflow-y: auto;
  field-sizing: content;
  caret-color: currentColor;
  border: 0 !important;
  outline: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}
html[data-theme].ui-preview .single-video-settings { margin-top: 3px; }
html[data-theme].ui-preview .single-video-composer-main { grid-template-columns: auto minmax(0, 1fr); gap: 10px; margin-top: -8px; }
html[data-theme].ui-preview .single-video-material-block {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: -14px;
  padding-bottom: 14px;
  transform: translateX(-6px);
}
html[data-theme].ui-preview .single-video-thumbs { display: flex; align-items: flex-start; gap: 0; margin: 0; padding: 5px 4px 3px; }
html[data-theme].ui-preview .single-video-thumbs .thumb {
  width: 60px;
  height: 72px;
  flex: 0 0 60px;
  aspect-ratio: auto;
  border-radius: 6px;
  z-index: calc(var(--fan-order) + 1);
  transform: rotate(var(--fan-fold-angle));
  transform-origin: 50% 100%;
  transition: margin-left .2s ease, transform .2s ease;
}
html[data-theme].ui-preview .single-video-thumbs .thumb + .thumb { margin-left: -48px; }
html[data-theme].ui-preview .single-video-material-block:hover .single-video-thumbs .thumb,
html[data-theme].ui-preview .single-video-material-block:focus-within .single-video-thumbs .thumb,
html[data-theme].ui-preview .single-video-material-block:has(.single-video-upload.dragging) .single-video-thumbs .thumb { transform: rotate(var(--fan-angle)); }
html[data-theme].ui-preview .single-video-material-block:hover .single-video-thumbs .thumb + .thumb,
html[data-theme].ui-preview .single-video-material-block:focus-within .single-video-thumbs .thumb + .thumb,
html[data-theme].ui-preview .single-video-material-block:has(.single-video-upload.dragging) .single-video-thumbs .thumb + .thumb { margin-left: -18px; }
html[data-theme].ui-preview .single-video-thumbs .thumb img,
html[data-theme].ui-preview .single-video-thumbs .thumb video,
html[data-theme].ui-preview .single-video-thumbs .single-video-media-icon {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  object-fit: cover;
  border-radius: 6px;
}
html[data-theme].ui-preview .single-video-thumbs .thumb-remove {
  top: -5px;
  right: auto;
  left: -5px;
  opacity: 0;
  transition: opacity .15s ease;
}
html[data-theme].ui-preview .single-video-material-block:hover .single-video-thumbs .thumb-remove,
html[data-theme].ui-preview .single-video-material-block:focus-within .single-video-thumbs .thumb-remove,
html[data-theme].ui-preview .single-video-material-block:has(.single-video-upload.dragging) .single-video-thumbs .thumb-remove { opacity: 1; }
html[data-theme].ui-preview .app :is(button, label).single-video-upload {
  width: 60px;
  height: 72px;
  flex: 0 0 60px;
  margin-top: 5px;
  background: var(--surface-soft);
  transform: rotate(-5deg);
  transition: width .2s ease, height .2s ease, flex-basis .2s ease, margin .2s ease, border-radius .2s ease, transform .16s ease, border-color .16s ease, background .16s ease;
}
html[data-theme].ui-preview .single-video-material-block:has(.single-video-thumbs:not(:empty)):not(:hover):not(:focus-within):not(:has(.single-video-upload.dragging)) .single-video-upload {
  width: 28px;
  height: 28px;
  min-height: 28px;
  flex-basis: 28px;
  align-self: flex-end;
  margin: 0 0 -14px -20px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface-soft);
  box-shadow: 0 1px 4px rgba(15, 23, 42, .12);
  transform: translate(-6.5355px, -6.5355px);
  z-index: 30;
}
html[data-theme].ui-preview .single-video-material-block:has(.single-video-thumbs:not(:empty)):not(:hover):not(:focus-within):not(:has(.single-video-upload.dragging)) .single-video-upload small { display: none; }
html[data-theme].ui-preview .single-video-material-block:has(.single-video-thumbs:not(:empty)):not(:hover):not(:focus-within):not(:has(.single-video-upload.dragging)) .single-video-upload-icon {
  color: #000;
  font-family: Arial, sans-serif;
  font-weight: 900;
}
html[data-theme].ui-preview .single-video-upload:hover,
html[data-theme].ui-preview .single-video-upload.dragging { transform: rotate(0deg) translateY(-2px); }

html[data-theme] :is(.icon-button, .icon-action, .creation-sidebar-icon, .single-video-generate, .side-nav-utility, .error-badge),
html[data-theme] .thumb-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  text-align: center;
  line-height: 1;
}
html[data-theme].ui-preview .single-video-generate { display: grid; place-items: center; }
html[data-theme].ui-preview .single-video-generate svg { display: block; margin: 0; transform: translate(-1.2929px, 1.2929px); }
html[data-theme].ui-preview .single-video-generate:disabled {
  color: var(--subtext);
  border-color: transparent;
  background: var(--line);
  box-shadow: none;
  opacity: 1;
  cursor: not-allowed;
}
html[data-theme] .icon-action[data-open-video] { font-size: 0; }
html[data-theme] .icon-action[data-open-video]::before { content: "▶"; font-size: 14px; transform: translateX(1px); }
html[data-theme] .thumb-remove {
  color: var(--subtext);
  border: 1px solid var(--line);
  background: var(--surface-soft);
  box-shadow: 0 1px 3px rgba(15, 23, 42, .12);
  font-size: 0;
  opacity: 1;
}
html[data-theme] .thumb-remove::before {
  content: "×";
  display: block;
  font: 700 13px/1 Arial, sans-serif;
}
html[data-theme].ui-preview .app .single-video-thumbs .thumb-remove,
html[data-theme].ui-preview .app .single-video-thumbs .thumb-remove:hover {
  color: #fff;
  border: 0;
  background: #111;
  box-shadow: 0 1px 3px rgba(15, 23, 42, .18);
}
html[data-theme].ui-preview .single-video-thumbs .thumb-remove::before,
html[data-theme].ui-preview .single-video-thumbs .thumb-remove::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 1.5px;
  border-radius: 1px;
  background: #fff;
  transform: translate(-50%, -50%) rotate(45deg);
}
html[data-theme].ui-preview .single-video-thumbs .thumb-remove::after { transform: translate(-50%, -50%) rotate(-45deg); }
html[data-theme].ui-preview .single-video-model-panel { width: 385px; gap: 5px; padding: 9px; }
html[data-theme].ui-preview .single-video-model-hint { margin: 0 4px 2px; overflow: hidden; color: var(--subtext); font-size: 10px; line-height: 1.4; text-overflow: ellipsis; white-space: nowrap; }
html[data-theme].ui-preview .single-video-model-option,
html[data-theme].ui-preview .single-video-model-option:hover { min-height: 39px; padding: 5px 9px; border: 0 !important; font-size: 12px; }
html[data-theme].ui-preview .single-video-model-label { min-width: 0; display: flex; align-items: center; gap: 7px; }
html[data-theme].ui-preview .single-video-model-label > svg { width: 15px; height: 15px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linejoin: round; }
html[data-theme].ui-preview .single-video-model-name { margin-inline: -2px; padding-inline: 2px; }
html[data-theme].ui-preview .single-video-model-description { min-width: 0; overflow: hidden; color: var(--subtext); font-size: 10px; font-weight: 400; text-overflow: ellipsis; white-space: nowrap; }
html[data-theme].ui-preview .single-video-format-panel { width: 396px; gap: 8px; padding: 14px; }
html[data-theme].ui-preview .single-video-format-panel > span { font-size: 10px; }
html[data-theme].ui-preview .single-video-format-panel .single-video-option-row { gap: 4px; padding: 3px; border-radius: 10px; }
html[data-theme].ui-preview .single-video-format-panel .single-video-option-row button { min-height: 31px; padding-inline: 7px; font-size: 11px; }
html[data-theme].ui-preview .single-video-format-panel .single-video-ratio-row button { min-height: 57px; gap: 6px; font-size: 9px; }
html[data-theme].ui-preview .single-video-format-panel .single-video-ratio-row button > i { transform: scale(.92); }
html[data-theme].ui-preview .single-video-gem {
  width: 12px !important;
  height: 12px !important;
  flex: 0 0 12px !important;
  color: #c05cf4;
  fill: none !important;
  stroke: currentColor !important;
  stroke-width: 4 !important;
  stroke-linecap: round;
  stroke-linejoin: round;
}
html[data-theme] :is(.side-nav-points, .single-video-points-cost, [data-user-tab="balance"]) svg { fill: none; stroke: currentColor; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] .reverse-flash-creation-icon { fill: none; stroke: currentColor; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }

html[data-theme].ui-preview .single-video-workspace {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: clamp(24px, 5vw, 72px);
  overflow: auto;
}
html[data-theme].ui-preview .single-video-workspace.history-active { padding-bottom: 250px; }
html[data-theme].ui-preview .app:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])):not(.creation-sidebar-collapsed) { padding-left: 308px; }
html[data-theme].ui-preview .creation-history {
  position: fixed;
  z-index: 20;
  top: 0;
  bottom: 0;
  left: 72px;
  width: 236px;
  box-sizing: border-box;
  display: none;
  padding: calc(var(--navigation-top-offset) - 2px) 15px 24px;
  overflow: auto;
  color: var(--text);
  border: 0;
  border-right: 1px solid var(--line);
  background: var(--surface);
}
html[data-theme].ui-preview .app:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])):not(.creation-sidebar-collapsed) .creation-history { display: block; }
html[data-theme].ui-preview #creationSidebarCollapse {
  position: relative;
  width: 28px;
  height: 28px;
  min-height: 28px;
  padding: 0;
  color: var(--text);
  appearance: none;
  border: 0 !important;
  outline: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}
html[data-theme].ui-preview #creationSidebarCollapse svg {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  transform: translate(-55%, -50%);
}
html[data-theme].ui-preview #creationSidebarCollapse:focus-visible { color: #2563eb; }
html[data-theme].ui-preview #creationSidebarCollapse::before,
html[data-theme].ui-preview .creation-sidebar-toggle::before { content: ""; position: absolute; top: 50%; left: 50%; width: 24px; height: 24px; border-radius: 6px; background: var(--hover); opacity: 0; transform: translate(-50%, -50%); }
html[data-theme].ui-preview #creationSidebarCollapse:hover::before,
html[data-theme].ui-preview #creationSidebarCollapse:focus-visible::before { opacity: 1; }
html[data-theme].ui-preview #creationSidebarCollapse svg { z-index: 1; }
html[data-theme].ui-preview .creation-history-title #creationSidebarCollapse { transform: translateY(-7px); }
html[data-theme].ui-preview .creation-sidebar-open { position: fixed; z-index: 20; top: 24px; left: 128px; width: 116px; height: 34px; box-sizing: border-box; padding: 1px; display: none; grid-template-columns: minmax(0, 1fr) 1px 30px; align-items: center; color: var(--text); border: 1px solid var(--line); border-radius: 8px; background: var(--surface); box-shadow: var(--shadow-panel); }
html[data-theme].ui-preview .creation-sidebar-open::before { content: ""; grid-column: 2; grid-row: 1; width: 1px; height: 16px; align-self: center; background: var(--line); }
html[data-theme].ui-preview .creation-sidebar-open :is(.creation-sidebar-menu-trigger, .creation-sidebar-toggle) { height: 30px; min-height: 30px; padding: 0; display: grid; place-items: center; color: var(--text); border: 0; border-radius: 6px; background: transparent; box-shadow: none; }
html[data-theme].ui-preview .creation-sidebar-menu-trigger { position: relative; grid-column: 1; grid-row: 1; }
html[data-theme].ui-preview .creation-sidebar-toggle::before { pointer-events: none; }
html[data-theme].ui-preview .creation-sidebar-menu-trigger::before { content: ""; position: absolute; inset: 3px; border-radius: 4px; background: var(--hover); opacity: 0; }
html[data-theme].ui-preview .creation-sidebar-menu-trigger::after { content: ""; position: absolute; top: 100%; left: -2px; width: 205px; height: 10px; }
html[data-theme].ui-preview .creation-sidebar-toggle { position: relative; grid-column: 3; grid-row: 1; }
html[data-theme].ui-preview .creation-sidebar-menu-trigger:hover::before,
html[data-theme].ui-preview .creation-sidebar-menu-trigger:focus-visible::before,
html[data-theme].ui-preview .creation-sidebar-toggle:hover::before,
html[data-theme].ui-preview .creation-sidebar-toggle:focus-visible::before { opacity: 1; }
html[data-theme].ui-preview .creation-sidebar-open :is(.creation-sidebar-menu-trigger, .creation-sidebar-toggle):hover,
html[data-theme].ui-preview .creation-sidebar-open :is(.creation-sidebar-menu-trigger, .creation-sidebar-toggle):focus-visible { outline: 0; }
html[data-theme].ui-preview #creationQuickMenu:hover,
html[data-theme].ui-preview #creationQuickMenu:focus-visible,
html[data-theme].ui-preview #creationSidebarOpen:hover,
html[data-theme].ui-preview #creationSidebarOpen:focus-visible { background: transparent !important; }
html[data-theme].ui-preview .creation-sidebar-menu-trigger span { position: relative; z-index: 1; }
html[data-theme].ui-preview .creation-sidebar-open svg { position: relative; z-index: 1; width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])) .creation-sidebar-open { display: grid; }
html[data-theme].ui-preview .creation-history-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 4px;
  margin-bottom: 13px;
  font-size: 15px;
  line-height: 24px;
}
html[data-theme].ui-preview .creation-history-title > strong { transform: translateY(-7px); }
html[data-theme].ui-preview .creation-history svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme].ui-preview .app button.creation-new {
  width: calc(100% - 4px);
  height: 34px;
  min-height: 34px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  margin-left: 4px;
  padding: 1px;
  color: var(--text);
  border: 0;
  border-radius: 8px;
  background: transparent;
  box-shadow: none;
}
html[data-theme].ui-preview .app button.creation-new:hover,
html[data-theme].ui-preview .app button.creation-new.active,
html[data-theme].ui-preview .app button.creation-new:focus-visible { background: var(--hover); }
html[data-theme].ui-preview :is(.creation-sidebar-open, .app button.creation-new) span {
  font-family: inherit;
  font-size: 13px;
  font-weight: 400;
  line-height: 1;
}
html[data-theme].ui-preview .app button.creation-new svg {
  width: 24px;
  height: 26px;
  box-sizing: border-box;
  flex: 0 0 24px;
  padding: 5px;
  color: var(--text);
  border-radius: 7px;
  background: var(--surface);
  stroke-width: 1.8;
  transform: translateX(3px);
}
html[data-theme].ui-preview .creation-history-label { margin: 15px 4px 12px 7px; color: var(--subtext); font-size: 12px; }
html[data-theme].ui-preview .creation-recent-list { display: grid; gap: 4px; }
html[data-theme].ui-preview .app button.creation-recent-item { width: calc(100% - 4px); height: 34px; min-height: 34px; display: grid; grid-template-columns: 34px minmax(0, 1fr); align-items: center; gap: 8px; margin-left: 4px; padding: 0 4px 0 0; color: var(--text); text-align: left; border: 0; border-radius: 8px; background: transparent; box-shadow: none; }
html[data-theme].ui-preview .app button.creation-recent-item:hover,
html[data-theme].ui-preview .app button.creation-recent-item.active { border: 0; background: var(--hover); box-shadow: none; }
html[data-theme].ui-preview .creation-recent-thumb { width: 34px; height: 34px; display: grid; place-items: center; overflow: hidden; border-radius: 8px; color: #fff; background: linear-gradient(135deg, #22c7dd, #7c8cf5); }
html[data-theme].ui-preview .creation-recent-thumb svg { width: 18px; height: 18px; fill: currentColor; stroke: none; }
html[data-theme].ui-preview .creation-recent-thumb video { display: block; width: 100%; height: 100%; object-fit: cover; }
html[data-theme].ui-preview .creation-recent-item > span:last-child { min-width: 0; display: grid; gap: 3px; }
html[data-theme].ui-preview .creation-recent-item strong,
html[data-theme].ui-preview .creation-recent-item small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
html[data-theme].ui-preview .creation-recent-item strong { font-size: 13px; font-weight: 500; }
html[data-theme].ui-preview .creation-recent-item small { display: none; color: var(--subtext); font-size: 11px; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])) .creation-history {
  display: block;
  top: 62px;
  bottom: auto;
  left: 128px;
  width: 205px;
  max-height: calc(100vh - 72px);
  padding: 4px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(16, 24, 40, .14);
  visibility: hidden;
  opacity: 0;
  transition: opacity 100ms ease-out, visibility 0s linear 100ms;
}
html[data-theme].ui-preview .app.creation-sidebar-collapsed:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])):has(.creation-sidebar-menu-trigger:hover, .creation-sidebar-menu-trigger:focus-visible, .creation-history:hover, .creation-history:focus-within) .creation-history {
  visibility: visible;
  opacity: 1;
  transition-delay: 0s;
}
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history .creation-history-title { display: none; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history button.creation-new {
  width: 100%;
  height: 34px;
  min-height: 34px;
  margin-left: 0;
  background: var(--hover);
}
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history .creation-history-label { margin: 10px 4px 6px 7px; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history .creation-recent-list { gap: 2px; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history button.creation-recent-item {
  width: 100%;
  height: 34px;
  min-height: 34px;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 8px;
  margin-left: 0;
  padding: 0 4px 0 0;
}
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history .creation-recent-thumb { width: 34px; height: 34px; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history .creation-recent-item small { display: none; }
html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history .creation-recent-item strong { font-weight: 400; }
@media (prefers-reduced-motion: reduce) {
  html[data-theme].ui-preview .app.creation-sidebar-collapsed .creation-history { transition: none; }
}
html[data-theme].ui-preview .single-video-history-copy p,
html[data-theme].ui-preview .single-video-history-copy small,
html[data-theme].ui-preview .single-video-history-media { color: var(--subtext); }
html[data-theme].ui-preview .single-video-history-view {
  position: relative;
}
html[data-theme].ui-preview .single-video-history-records { display: grid; gap: 56px; }
html[data-theme].ui-preview .single-video-history-entry { position: relative; }
html[data-theme].ui-preview .single-video-history-entry[data-history-day-start="true"] { margin-top: 32px; }
html[data-theme].ui-preview .history-day-divider { position: absolute; top: -48px; left: 0; margin: 0; color: var(--text); font-size: 18px; font-weight: 700; line-height: 24px; }
html[data-theme].ui-preview .single-video-history-toolbar {
  position: fixed;
  top: 24px;
  right: 32px;
  z-index: 12;
  height: 34px;
  display: flex;
  align-items: stretch;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .03);
}
html[data-theme].ui-preview .single-video-history-search { position: relative; width: 34px; display: flex; overflow: hidden; transition: width 90ms ease-out; }
html[data-theme].ui-preview .single-video-history-search.search-open { width: 265px; }
html[data-theme].ui-preview .app button.single-video-history-search-toggle {
  width: 34px;
  min-height: 32px;
  padding: 0;
  display: grid;
  place-items: center;
  color: var(--text);
  border: 0;
  border-radius: 8px 0 0 8px;
  background: transparent;
  box-shadow: none;
  position: relative;
  z-index: 2;
}
html[data-theme].ui-preview .app button.single-video-history-search-toggle:hover,
html[data-theme].ui-preview .app button.single-video-history-search-toggle:focus-visible,
html[data-theme].ui-preview .app button.single-video-history-filter-button:hover,
html[data-theme].ui-preview .app button.single-video-history-filter-button:focus-visible { background: transparent; outline: 0; }
html[data-theme].ui-preview .app button.single-video-history-search-toggle::before,
html[data-theme].ui-preview .app button.single-video-history-filter-button::before { content: ""; position: absolute; inset: 3px; border-radius: 5px; background: var(--hover); opacity: 0; }
html[data-theme].ui-preview .app button.single-video-history-search-toggle:hover::before,
html[data-theme].ui-preview .app button.single-video-history-search-toggle:focus-visible::before,
html[data-theme].ui-preview .app button.single-video-history-filter-button:hover::before,
html[data-theme].ui-preview .app button.single-video-history-filter-button:focus-visible::before { opacity: 1; }
html[data-theme].ui-preview .single-video-history-search-toggle svg,
html[data-theme].ui-preview .single-video-history-filter svg {
  position: relative;
  z-index: 1;
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}
html[data-theme].ui-preview .single-video-history-search-input {
  position: absolute;
  top: 0;
  right: 0;
  left: 34px;
  width: auto;
  height: 32px;
  padding: 0 10px 0 4px;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  border: 0;
  border-radius: 0;
  outline: 0;
  background: transparent;
  box-shadow: none;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 70ms ease-out, visibility 0s linear 90ms;
}
html[data-theme].ui-preview .single-video-history-search.search-open .single-video-history-search-input { visibility: visible; opacity: 1; pointer-events: auto; transition-delay: 0s; }
html[data-theme].ui-preview .single-video-history-filter {
  position: relative;
  display: flex;
  align-items: center;
  border-left: 0;
}
html[data-theme].ui-preview .single-video-history-filter::before { content: ""; position: absolute; top: 50%; left: 0; width: 1px; height: 16px; background: var(--line); transform: translateY(-50%); }
html[data-theme].ui-preview .single-video-history-native-filter { display: none !important; }
html[data-theme].ui-preview .app button.single-video-history-filter-button {
  width: 82px;
  height: 32px;
  min-height: 32px;
  padding: 0 28px 0 12px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  border: 0;
  border-radius: 7px;
  outline: 0;
  background: transparent;
  box-shadow: none;
  position: relative;
}
html[data-theme].ui-preview .app .single-video-history-operation-filter button.single-video-history-filter-button { width: 108px; }
html[data-theme].ui-preview .single-video-history-filter-button svg {
  position: absolute;
  right: 10px;
  z-index: 1;
  pointer-events: none;
}
html[data-theme].ui-preview .single-video-history-filter-button[aria-expanded="true"] svg { transform: rotate(180deg); }
html[data-theme].ui-preview .single-video-history-filter-button span { position: relative; z-index: 1; }
html[data-theme].ui-preview .single-video-history-filter-panel {
  position: absolute;
  top: 36px;
  right: 0;
  z-index: 20;
  width: 150%;
  min-width: 0;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(16, 24, 40, .14);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 100ms ease-out, visibility 0s linear 100ms;
}
html[data-theme].ui-preview .single-video-history-filter-panel.open { visibility: visible; opacity: 1; pointer-events: auto; transition-delay: 0s; }
html[data-theme].ui-preview .app .single-video-history-filter-panel button { width: 100%; height: 34px; min-height: 34px; padding: 0 10px; color: var(--text); font: inherit; font-size: 13px; font-weight: 400; text-align: left; border: 0; border-radius: 8px; background: transparent; box-shadow: none; white-space: nowrap; }
html[data-theme].ui-preview .app .single-video-history-filter-panel button:hover,
html[data-theme].ui-preview .app .single-video-history-filter-panel button:focus-visible { background: var(--hover); outline: 0; }
html[data-theme].ui-preview .single-video-history-empty {
  margin: 80px 0 0;
  color: var(--subtext);
  text-align: center;
  font-size: 13px;
}
html[data-theme].ui-preview .single-video-history-entry[hidden] { display: none !important; }
html[data-theme].ui-preview .single-video-history-media { border: 1px solid var(--line); background: var(--surface-soft); }
html[data-theme].ui-preview .single-video-history-media > span { color: var(--text); }
html[data-theme].ui-preview .single-video-history-video { width: 100%; min-height: 210px; justify-self: start; overflow: hidden; background: #000; }
html[data-theme].ui-preview .single-video-history-video video { display: block; width: 100%; height: min(35vh, 360px); object-fit: contain; background: #000; }
html[data-theme].ui-preview .single-video-history-materials { width: max-content; min-height: 62px; display: flex; align-items: center; padding-inline: 6px; transform: none; }
html[data-theme].ui-preview .single-video-history-materials img { width: 48px; height: 48px; display: block; object-fit: cover; border: 2px solid var(--surface); border-radius: 2px; box-shadow: 0 3px 10px rgba(15, 23, 42, .14); transform: rotate(-7deg); transform-origin: center; }
html[data-theme].ui-preview .single-video-history-materials img + img { margin-left: -8px; transform: rotate(5deg); }
html[data-theme].ui-preview .single-video-history-materials img:nth-child(3n) { transform: rotate(-3deg); }
html[data-theme].ui-preview .generated-history-entry .single-video-history-copy { padding-top: 0; }
html[data-theme].ui-preview .generated-history-entry .single-video-history-copy small { display: flex; align-items: center; gap: 5px; }
html[data-theme].ui-preview .single-video-history-copy-button { width: 22px; height: 22px; min-height: 22px; padding: 0; display: inline-grid; place-items: center; color: var(--subtext); border: 0; border-radius: 5px; background: transparent; box-shadow: none; }
html[data-theme].ui-preview .single-video-history-copy-button:hover,
html[data-theme].ui-preview .single-video-history-copy-button:focus-visible { color: #fff; background: #4b5563; }
html[data-theme].ui-preview .single-video-history-copy-button svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme].ui-preview .single-video-history-symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
html[data-theme].ui-preview .single-video-history-actions button {
  min-height: 32px;
  padding: 0 12px;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 9pt;
  font-weight: 400;
  border: 0;
  background: var(--hover);
  box-shadow: none;
}
html[data-theme].ui-preview .single-video-history-actions button svg { width: 12px; height: 12px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme].ui-preview .single-video-history-actions button:last-child { width: auto; padding: 0 12px; }
html[data-theme].ui-preview .single-video-history-actions button:hover { background: var(--line); }
html[data-theme].ui-preview .single-video-back-to-bottom {
  color: var(--subtext);
  border: 0;
  background: var(--hover);
  box-shadow: none;
}
html[data-theme].ui-preview .single-video-builder {
  align-self: center;
}
html[data-theme].ui-preview :is(.single-video-builder, .reverse-shell) {
  width: min(1000px, 100%);
  min-width: 0;
  margin: 0;
  transform: translateY(-8vh);
}

/* 中等宽度时把创作记录栏作为覆盖式抽屉，避免同时挤压主创作区。 */
@media (min-width: 761px) and (max-width: 980px) {
  html[data-theme].ui-preview .app:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])):not(.creation-sidebar-collapsed) {
    padding-left: 88px;
  }
  html[data-theme].ui-preview .creation-history { box-shadow: var(--shadow-panel); }
  html[data-theme].ui-preview .single-video-control-group { flex-wrap: wrap; }
  html[data-theme].ui-preview .single-video-control-wrap { position: static; }
  html[data-theme].ui-preview .single-video-popover {
    left: 0;
    right: auto;
    max-width: 100%;
    box-sizing: border-box;
    transform: none;
  }
}

@media (max-width: 760px) {
  html[data-theme] .app { padding: 10px 10px 10px 72px; }
  html[data-theme] .side-nav {
    position: fixed;
    inset: 0 auto 0 0;
    width: 60px;
    height: 100vh;
    box-sizing: border-box;
    padding-inline: 4px;
    display: flex;
    grid-template-columns: none;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    border: 0;
    border-right: 1px solid var(--line);
    border-radius: 0;
  }
  html[data-theme] .side-nav-logo { grid-column: auto; width: 52px; height: 78px; margin-bottom: 24px; }
  html[data-theme] .app .side-nav .side-nav-item,
  html[data-theme] .app .side-nav .side-nav-link { width: 52px; }
  html[data-theme].ui-preview .single-video-workspace { grid-template-columns: 1fr; padding: 20px; overflow: auto; }
  html[data-theme].ui-preview .app:has(:is(#singleVideoWorkspace, #pageTwo):not([hidden])):not(.creation-sidebar-collapsed) { padding: 10px 10px 10px 72px; }
  html[data-theme].ui-preview .creation-history { display: none !important; }
  html[data-theme].ui-preview .creation-sidebar-open { display: none !important; }
  html[data-theme].ui-preview :is(.single-video-builder, .reverse-shell) { width: 100%; transform: none; }
}

@media (max-width: 640px) {
  html[data-theme].ui-preview .single-video-control-wrap { position: static; }
  html[data-theme].ui-preview .single-video-popover {
    left: 0;
    right: 0;
    width: auto !important;
    max-width: none;
    box-sizing: border-box;
    transform: none;
  }
}

/* 后台沿用工作台导航和白色简约视觉，只保留一层内容卡片。 */
html[data-theme] .admin-app {
  display: block;
  height: 100vh;
  padding: 0 0 0 72px;
  overflow: hidden;
  background: var(--bg);
}
html[data-theme] .admin-content {
  height: 100vh;
  padding: 24px clamp(20px, 4vw, 56px) 40px;
  overflow: auto;
  scrollbar-gutter: stable;
}
html[data-theme] .admin-page #accountShortcut { margin-top: auto !important; }
html[data-theme] .admin-header,
html[data-theme] .admin-shell { width: min(1180px, 100%); }
html[data-theme] .admin-header {
  margin: 0 auto 18px;
  padding: 24px 28px;
}
html[data-theme] .admin-header h1 { margin: 3px 0 7px; font-size: 28px; line-height: 1.2; }
html[data-theme] .admin-header .admin-subtitle { margin: 0; color: var(--subtext); font-size: 13px; }
html[data-theme] .admin-shell { gap: 16px; padding: 0; }
html[data-theme] #adminNavigation {
  margin: 0;
  padding: 6px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-panel);
}
html[data-theme] #adminNavigation button {
  min-width: 0;
  min-height: 38px;
  padding: 0 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  font-size: 13px;
  font-weight: 500;
}
html[data-theme] #adminNavigation button:disabled {
  color: var(--accent-text);
  background: var(--accent);
  opacity: 1;
  cursor: default;
}
html[data-theme] .admin-panel { padding: 24px; border-radius: 14px; }
html[data-theme] .admin-panel h2,
html[data-theme] .admin-dialog h2 { margin: 0 0 18px; font-size: 19px; }
html[data-theme] .admin-panel-title h2 { margin-bottom: 0; }
html[data-theme] .admin-panel > .admin-panel-title { margin-bottom: 18px; }
html[data-theme] .admin-page .account-list { gap: 10px; }
html[data-theme] .admin-page .account-card {
  min-width: 0;
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--surface-soft);
}
html[data-theme] .admin-page .account-card strong { font-size: 14px; }
html[data-theme] .admin-page .account-card small { color: var(--subtext); font-size: 12px; line-height: 1.5; }
html[data-theme] #dashboardCards { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
html[data-theme] #dashboardCards .account-card {
  min-height: 104px;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
}
html[data-theme] #dashboardCards .account-card strong { font-size: 26px; line-height: 1; }
html[data-theme] #dashboardCards .account-card small { margin-top: 10px; }
html[data-theme] .admin-page .account-actions { justify-content: flex-end; }
html[data-theme] .admin-page button { min-height: 34px; padding: 0 12px; border-radius: 8px; font-size: 12px; }
html[data-theme] .admin-page input:not([type="checkbox"]) { width: 100%; min-height: 40px; padding: 0 12px; border: 1px solid var(--line); border-radius: 8px; }
html[data-theme] .redemption-code-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)) auto; align-items: end; gap: 16px; }
html[data-theme] .redemption-code-form label,
html[data-theme] .redemption-code-field { display: grid; gap: 7px; color: var(--subtext); font-size: 12px; }
html[data-theme] .redemption-code-form small { min-height: 16px; color: var(--subtext); }
html[data-theme] .unified-option-select { position: relative; color: var(--text); font-size: 12px; }
html[data-theme] .unified-option-select summary { height: 40px; box-sizing: border-box; padding: 0 12px; display: flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); cursor: pointer; list-style: none; }
html[data-theme] .unified-option-select summary::-webkit-details-marker { display: none; }
html[data-theme] .unified-option-select summary::after { content: "⌄"; margin-left: auto; color: var(--subtext); }
html[data-theme] .admin-page .unified-option-select > summary:is(:focus, :focus-visible),
html[data-theme] .admin-page .unified-option-select[open] > summary { border-color: var(--line); outline: 0; box-shadow: 0 0 0 2px #c76ff5; }
html[data-theme] .unified-option-panel { position: absolute; z-index: 50; top: calc(100% + 10px); left: 0; right: 0; padding: 9px; display: grid; gap: 5px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow-panel); }
html[data-theme] .admin-page .unified-option-panel button { min-height: 39px; padding: 5px 9px; display: flex; align-items: center; justify-content: flex-start; border: 0 !important; border-radius: 8px; color: var(--text); background: transparent !important; box-shadow: none !important; font-size: 12px; text-align: left; }
html[data-theme] .admin-page .unified-option-panel button:hover,
html[data-theme] .admin-page .unified-option-panel button.active { border: 0 !important; background: var(--hover) !important; }
html[data-theme] .admin-page .unified-option-panel button.active::after { content: "✓"; margin-left: auto; }
html[data-theme] .redemption-code-form > button { min-height: 40px; }
html[data-theme] .redemption-code-result { margin-top: 20px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-soft); }
html[data-theme] .redemption-code-result .admin-panel-title { margin-bottom: 12px; }
html[data-theme] .redemption-code-result textarea { width: 100%; min-height: 220px; resize: vertical; font-family: ui-monospace, Consolas, monospace; line-height: 1.65; }
html[data-theme] .redemption-code-result p { margin: 10px 0 0; color: var(--subtext); font-size: 12px; }
html[data-theme] #settingsForm { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
html[data-theme] #settingsForm > label,
html[data-theme] #videoApiList label { display: grid; gap: 7px; color: var(--subtext); font-size: 12px; }
html[data-theme] #settingsForm > h3,
html[data-theme] #settingsForm > .admin-dialog-actions,
html[data-theme] #settingsForm > #videoApiList { grid-column: 1 / -1; }
html[data-theme] #settingsForm > h3 { margin: 8px 0 0; font-size: 15px; }
html[data-theme] #videoApiList fieldset {
  margin: 0;
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
html[data-theme] #videoApiList fieldset > button { align-self: end; }
html[data-theme] #videoApiList label:has(input[type="checkbox"]) { display: flex; align-items: center; }
html[data-theme] #videoApiList input[type="checkbox"] { width: 16px; height: 16px; margin: 0; }
html[data-theme] .admin-dialog { border-radius: 14px; }
html[data-theme] #settingsForm.api-settings-form { display: block; }
html[data-theme] .api-connection-card {
  padding: 18px;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(280px, 1.4fr) auto;
  align-items: end;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
}
html[data-theme] .api-connection-card > div:first-child,
html[data-theme] .api-connection-card > label { display: grid; gap: 7px; }
html[data-theme] .api-connection-card small,
html[data-theme] .api-connection-card label,
html[data-theme] .api-model-heading p { color: var(--subtext); font-size: 12px; }
html[data-theme] .api-connection-card strong { font-size: 13px; font-weight: 500; overflow-wrap: anywhere; }
html[data-theme] .api-connection-card .admin-dialog-actions { margin: 0; flex-wrap: nowrap; }
html[data-theme] .api-connection-card-pending { margin-bottom: 12px; }
html[data-theme] .api-connection-status,
html[data-theme] .api-model-pending { color: var(--subtext); font-size: 11px; white-space: nowrap; }
html[data-theme] .api-model-heading { margin: 24px 0 12px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
html[data-theme] .api-model-heading h3 { margin: 0 0 5px; font-size: 16px; }
html[data-theme] .api-model-heading p { margin: 0; }
html[data-theme] .api-model-heading > span { padding: 5px 9px; border-radius: 999px; background: var(--surface-soft); color: var(--subtext); font-size: 11px; white-space: nowrap; }
html[data-theme] #videoApiList,
html[data-theme] #modelGoModelList { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
html[data-theme] .api-model-card { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
html[data-theme] .api-model-card header { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
html[data-theme] .api-model-card header > div { min-width: 0; display: grid; gap: 5px; }
html[data-theme] .api-model-card code { color: var(--subtext); font-family: inherit; font-size: 11px; overflow-wrap: anywhere; }
html[data-theme] #addApiModelForm [data-creation-model-field][hidden] { display: none !important; }
html[data-theme] [data-toggle-api-model] { width: 16px; height: 16px; margin: 0; }
html[data-theme] .api-model-capabilities { margin-top: 16px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; }
html[data-theme] .api-model-capabilities span { display: grid; gap: 4px; font-size: 12px; }
html[data-theme] .api-model-capabilities span:last-child { grid-column: 1 / -1; }
html[data-theme] .api-model-capabilities-compact span:last-child { grid-column: auto; }
html[data-theme] .api-model-capabilities small { color: var(--subtext); font-size: 11px; }
html[data-theme] #apiSettingsTabs { margin: 18px 0 16px; padding-right: 36px; justify-content: flex-end; }
html[data-theme] .api-category-card { padding: 18px; border-radius: 12px; background: var(--surface-soft); }
html[data-theme] .api-category-header { margin-bottom: 14px; padding-right: 18px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
html[data-theme] .api-category-header h3 { margin: 0; font-size: 16px; }
html[data-theme] .api-service-list { display: grid; gap: 16px; }
html[data-theme] .api-empty { margin: 0; padding: 36px 20px; border-radius: 12px; background: var(--surface); color: var(--subtext); text-align: center; }
html[data-theme] .api-service-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
html[data-theme] .api-service-summary { padding: 18px 92px 18px 18px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
html[data-theme] .api-service-summary > div { min-width: 0; display: grid; gap: 7px; }
html[data-theme] .api-service-summary small { color: var(--subtext); font-size: 11px; }
html[data-theme] .api-service-summary strong { overflow-wrap: anywhere; font-size: 13px; font-weight: 500; }
html[data-theme] .api-service-models { padding: 0 18px 18px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
html[data-theme] .api-service-models:empty { display: none; }
html[data-theme] .api-service-card footer { padding: 12px 18px; display: flex; justify-content: flex-end; border-top: 1px solid var(--line); }
html[data-theme] .api-service-card footer button { min-height: 34px; }
html[data-theme] .api-model-header-tools { display: flex !important; grid-template-columns: none !important; align-items: center; gap: 8px !important; }
html[data-theme] .api-card-actions { display: flex !important; grid-template-columns: none !important; align-items: center; gap: 2px !important; }
html[data-theme] .api-service-actions { position: absolute; z-index: 2; top: 12px; right: 12px; }
html[data-theme] .admin-page .api-card-actions button { width: 30px; min-width: 30px; height: 30px; min-height: 30px; padding: 0; display: grid; place-items: center; color: var(--subtext); border: 0 !important; border-radius: 7px; background: transparent !important; box-shadow: none !important; }
html[data-theme] .admin-page .api-card-actions button:hover { color: var(--text); border: 0 !important; background: var(--hover) !important; }
html[data-theme] .api-card-actions svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme] #addApiModelDialog { width: min(570px, calc(100vw - 32px)); padding: 18px; }
html[data-theme] #addApiModelDialog form { display: grid; gap: 13px; }
html[data-theme] #addApiModelDialog h2 { margin: 0 0 2px; font-size: 18px; }
html[data-theme] #addApiModelDialog label { display: grid; gap: 5px; color: var(--subtext); font-size: 12px; }
html[data-theme] .api-config-dialog textarea { min-height: 132px; resize: vertical; font-family: ui-monospace, Consolas, monospace; line-height: 1.5; }
html[data-theme] .api-model-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 10px; }
html[data-theme] .api-model-form-grid > label { grid-template-columns: 64px minmax(0, 1fr); align-items: center; gap: 8px; }
html[data-theme] #addApiModelDialog :is(input:not([type="checkbox"]), select, .api-multi-select summary) { height: 34px; min-height: 34px; padding-top: 0; padding-bottom: 0; }
html[data-theme] .api-model-wide { grid-column: 1 / -1; }
html[data-theme] .api-field-label { margin: 0; color: var(--subtext); font-size: 12px; white-space: nowrap; }
html[data-theme] .api-inline-field { display: grid; grid-template-columns: 64px minmax(0, 1fr); align-items: center; gap: 8px; }
html[data-theme] .api-multi-select { position: relative; font-size: 12px; }
html[data-theme] .api-multi-select summary { padding: 0 10px; display: flex; align-items: center; color: var(--text); border: 1px solid var(--line); border-radius: 8px; background: var(--surface); cursor: pointer; list-style: none; }
html[data-theme] .api-multi-select summary::-webkit-details-marker { display: none; }
html[data-theme] .api-multi-select summary::after { content: "⌄"; margin-left: auto; color: var(--subtext); }
html[data-theme] .admin-page .api-multi-select > summary:is(:focus, :focus-visible),
html[data-theme] .admin-page .api-multi-select[open] > summary { border-color: var(--line); outline: 0; box-shadow: 0 0 0 2px #c76ff5; }
html[data-theme] .api-multi-select-menu { position: absolute; z-index: 20; top: calc(100% + 5px); left: 0; right: 0; padding: 5px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); box-shadow: var(--shadow-float); }
html[data-theme] .api-aspect-menu { top: auto; bottom: calc(100% + 5px); }
html[data-theme] .api-multi-select-menu label { min-height: 30px; padding: 0 7px; display: flex; grid-template-columns: none; align-items: center; gap: 7px; border-radius: 6px; color: var(--text); cursor: pointer; }
html[data-theme] .api-multi-select-menu label:hover { background: var(--hover); }
html[data-theme] .api-multi-select-menu input { width: 15px; height: 15px; margin: 0; }
html[data-theme] .api-pricing-rows { display: grid; gap: 9px; }
html[data-theme] .api-pricing-rows:empty { display: none; }
html[data-theme] .api-pricing-row { padding: 8px; display: grid; grid-template-columns: 54px 1fr 1fr; align-items: center; gap: 8px; border-radius: 8px; background: var(--surface-soft); }
html[data-theme] .api-pricing-row > strong { align-self: center; font-size: 13px; }
html[data-theme] .api-pricing-row label { grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 6px; }
html[data-theme] .api-model-fieldset { margin: 0; padding: 8px; display: grid; grid-template-columns: 64px minmax(0, 1fr); align-items: center; gap: 8px; border: 0; border-radius: 8px; background: var(--surface-soft); }
html[data-theme] .api-number-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
html[data-theme] .api-number-grid label { grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 5px; }
html[data-theme] .api-compact-card { padding: 8px; border-radius: 8px; background: var(--surface-soft); }
html[data-theme] .api-compact-group { min-width: 0; display: grid; grid-template-columns: 64px minmax(0, 1fr); align-items: center; gap: 8px; }
html[data-theme] .api-duration-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }

@media (max-width: 900px) {
  html[data-theme] #dashboardCards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  html[data-theme] .api-connection-card { grid-template-columns: 1fr; align-items: stretch; }
  html[data-theme] .redemption-code-form { grid-template-columns: 1fr 1fr; }
  html[data-theme] .api-service-summary { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  html[data-theme] .admin-app { padding-left: 60px; }
  html[data-theme] .admin-content { padding: 16px 12px 28px; }
  html[data-theme] .admin-header { padding: 20px; }
  html[data-theme] .admin-panel { padding: 18px; }
  html[data-theme] #adminNavigation,
  html[data-theme] #settingsForm,
  html[data-theme] #videoApiList fieldset { grid-template-columns: 1fr; }
  html[data-theme] #dashboardCards { grid-template-columns: 1fr 1fr; }
  html[data-theme] #videoApiList { grid-template-columns: 1fr; }
  html[data-theme] .api-service-models,
  html[data-theme] .api-model-form-grid { grid-template-columns: 1fr; }
  html[data-theme] .api-model-wide { grid-column: 1; }
  html[data-theme] .api-pricing-row,
  html[data-theme] .api-number-grid,
  html[data-theme] .api-duration-grid { grid-template-columns: 1fr; }
  html[data-theme] .redemption-code-form { grid-template-columns: 1fr; }
  html[data-theme] .admin-page .account-card { align-items: stretch; flex-direction: column; }
}