:root {
  --hd-bg: #f5f7f9;
  --hd-bg-2: #eef3f4;
  --hd-surface: #ffffff;
  --hd-surface-2: #f9fafb;
  --hd-border: #dfe6ea;
  --hd-border-strong: #cbd6dc;
  --hd-text: #0a1328;
  --hd-muted: #5f6b7a;
  --hd-soft: #8a96a3;
  --hd-primary: #10233f;
  --hd-primary-2: #0f766e;
  --hd-accent: #a855f7;
  --hd-danger: #b42318;
  --hd-shadow: rgba(10, 19, 40, 0.1);
  --hd-focus: rgba(15, 118, 110, 0.22);
}

html[data-theme="dark"] {
  --hd-bg: #080d16;
  --hd-bg-2: #101724;
  --hd-surface: #121a28;
  --hd-surface-2: #0d1421;
  --hd-border: #243246;
  --hd-border-strong: #34465f;
  --hd-text: #f4f7fb;
  --hd-muted: #aab5c4;
  --hd-soft: #7e8a9c;
  --hd-primary: #eef6ff;
  --hd-primary-2: #2dd4bf;
  --hd-accent: #c084fc;
  --hd-danger: #fb7185;
  --hd-shadow: rgba(0, 0, 0, 0.34);
  --hd-focus: rgba(45, 212, 191, 0.26);
}

html,
body {
  background:
    radial-gradient(circle at 8% -4%, color-mix(in srgb, var(--hd-primary-2) 17%, transparent), transparent 30%),
    radial-gradient(circle at 94% -8%, color-mix(in srgb, var(--hd-accent) 12%, transparent), transparent 32%),
    linear-gradient(180deg, var(--hd-bg), var(--hd-bg-2)) !important;
  color: var(--hd-text);
}

body {
  font-synthesis-weight: none;
}

.header.studio-header {
  min-height: 70px;
  padding: 12px 30px;
  background: color-mix(in srgb, var(--hd-surface) 88%, transparent) !important;
  color: var(--hd-text);
  border-bottom: 1px solid var(--hd-border);
  box-shadow: 0 18px 44px var(--hd-shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.studio-header .header-right {
  gap: 10px;
}

.studio-header .header-right > button:last-child {
  display: none !important;
}

.theme-toggle {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  height: 42px;
  min-width: 42px;
  border: 1px solid var(--hd-border-strong);
  border-radius: 999px;
  background: color-mix(in srgb, var(--hd-surface) 88%, transparent);
  color: var(--hd-text);
  box-shadow: 0 16px 36px var(--hd-shadow);
  cursor: pointer;
  font: 700 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.theme-toggle:hover {
  border-color: var(--hd-primary-2);
  color: var(--hd-primary-2);
}

.announcement-focus {
  max-width: 760px;
  background: var(--hd-surface) !important;
  color: var(--hd-muted) !important;
  border: 1px solid var(--hd-border) !important;
  box-shadow: none !important;
}

.announcement-focus .announcement-dot {
  background: var(--hd-primary-2) !important;
}

.announcement-focus .announcement-type,
.announcement-focus .announcement-title {
  color: var(--hd-text) !important;
}

.announcement-summary-window,
.announcement-count {
  color: var(--hd-muted) !important;
  border-color: var(--hd-border) !important;
}

.balance-pill {
  color: var(--hd-text) !important;
  background: var(--hd-surface) !important;
  border: 1px solid var(--hd-border) !important;
  box-shadow: 0 10px 24px var(--hd-shadow);
}

.balance-label,
.balance-empty {
  color: var(--hd-muted) !important;
}

.balance-value {
  color: var(--hd-text) !important;
}

.balance-pill .icon-btn {
  color: var(--hd-soft) !important;
}

.btn,
button.btn,
a.btn {
  min-height: 38px;
  border-radius: 10px !important;
  border: 1px solid var(--hd-border-strong) !important;
  background: var(--hd-surface) !important;
  color: var(--hd-text) !important;
  box-shadow: none !important;
  text-shadow: none !important;
}

.btn:hover,
button.btn:hover,
a.btn:hover {
  border-color: var(--hd-primary-2) !important;
  color: var(--hd-text) !important;
  background: color-mix(in srgb, var(--hd-surface) 88%, var(--hd-primary-2) 12%) !important;
}

.btn:disabled,
button.btn:disabled {
  opacity: 0.55 !important;
  color: var(--hd-soft) !important;
  background: var(--hd-surface-2) !important;
}

.btn-primary,
button.btn-primary,
a.btn-primary,
.generate-btn {
  border: 1px solid transparent !important;
  color: #ffffff !important;
  background: linear-gradient(135deg, #111827 0%, #0f766e 72%, #14b8a6 120%) !important;
  box-shadow: 0 14px 30px rgba(15, 118, 110, 0.24) !important;
}

.btn-primary:hover,
button.btn-primary:hover,
a.btn-primary:hover,
.generate-btn:hover {
  color: #ffffff !important;
  background: linear-gradient(135deg, #0b1220 0%, #0f6f68 72%, #10a99a 120%) !important;
  box-shadow: 0 16px 34px rgba(15, 118, 110, 0.3) !important;
}

.btn-primary:disabled,
.generate-btn:disabled {
  color: rgba(255, 255, 255, 0.68) !important;
  background: #53606f !important;
  box-shadow: none !important;
}

.recharge-btn {
  color: var(--hd-text) !important;
  background: var(--hd-surface) !important;
}

.btn-danger-sm {
  color: var(--hd-danger) !important;
  background: color-mix(in srgb, var(--hd-surface) 92%, var(--hd-danger) 8%) !important;
  border-color: color-mix(in srgb, var(--hd-border) 70%, var(--hd-danger) 30%) !important;
}

.studio-main {
  max-width: 1860px;
  gap: 24px;
  padding: 24px 28px 30px;
}

.studio-output,
.studio-panel {
  border: 1px solid var(--hd-border) !important;
  border-radius: 18px !important;
  background: color-mix(in srgb, var(--hd-surface) 94%, transparent) !important;
  box-shadow: 0 24px 64px var(--hd-shadow) !important;
}

.studio-topbar {
  min-height: 112px;
  padding: 24px 34px;
  background: linear-gradient(180deg, var(--hd-surface), var(--hd-surface-2));
  border-bottom-color: var(--hd-border) !important;
}

.brand-block.ai-brand {
  align-items: center;
  gap: 18px;
}

.brand-block.ai-brand::before {
  content: "";
  width: 54px;
  height: 54px;
  flex: 0 0 54px;
  border-radius: 16px;
  background:
    radial-gradient(circle at 22% 78%, #071a45 0 9%, transparent 10%),
    conic-gradient(from 218deg, #071a45, #0f766e, #14b8a6, #a855f7, #071a45);
  box-shadow: 0 14px 30px rgba(15, 118, 110, 0.2);
}

.brand-block h1 {
  color: var(--hd-text) !important;
  font-size: 38px !important;
  line-height: 1 !important;
  font-weight: 950 !important;
  letter-spacing: 0 !important;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
}

.brand-block h1::first-letter {
  color: var(--hd-primary-2);
}

.brand-block p,
.studio-card-title span,
.field-grid label span,
.price-row-front span,
.hint {
  color: var(--hd-muted) !important;
}

.workspace-canvas {
  min-height: calc(100vh - 246px);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--hd-surface-2) 76%, transparent), color-mix(in srgb, var(--hd-bg) 90%, transparent)),
    var(--hd-surface-2) !important;
}

.empty-icon {
  color: var(--hd-primary-2) !important;
  background: color-mix(in srgb, var(--hd-surface) 88%, var(--hd-primary-2) 12%) !important;
}

.studio-panel {
  padding: 24px;
}

.studio-card {
  border-color: var(--hd-border) !important;
}

.studio-card-title b {
  color: var(--hd-text) !important;
}

.select,
.input,
.textarea {
  border-color: var(--hd-border-strong) !important;
  border-radius: 12px !important;
  background: var(--hd-surface-2) !important;
  color: var(--hd-text) !important;
}

.select:focus,
.input:focus,
.textarea:focus {
  border-color: var(--hd-primary-2) !important;
  box-shadow: 0 0 0 3px var(--hd-focus) !important;
}

.ref-drop-main {
  background: var(--hd-surface-2) !important;
  border-color: var(--hd-border-strong) !important;
  border-radius: 14px !important;
}

.ref-drop-main:hover,
.ref-dropzone:focus-within .ref-drop-main {
  background: color-mix(in srgb, var(--hd-surface) 88%, var(--hd-primary-2) 12%) !important;
  border-color: var(--hd-primary-2) !important;
}

.upload-symbol {
  background: color-mix(in srgb, var(--hd-surface) 84%, var(--hd-primary-2) 16%) !important;
  color: var(--hd-primary-2) !important;
}

.price-row-front {
  padding: 18px 0 16px;
}

.price-row-front b {
  color: var(--hd-text) !important;
  font-size: 24px;
}

.generate-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 64px;
  border-radius: 14px !important;
  font-size: 17px;
  font-weight: 850;
}

.gallery-item {
  border-color: var(--hd-border) !important;
  border-radius: 14px !important;
  background: var(--hd-surface) !important;
  box-shadow: 0 12px 30px var(--hd-shadow);
}

.modal-mask {
  align-items: center !important;
  justify-content: center !important;
  padding: 28px !important;
  background: rgba(10, 19, 40, 0.56) !important;
}

.modal,
.action-modal {
  position: relative !important;
  width: min(620px, calc(100vw - 56px)) !important;
  max-width: min(620px, calc(100vw - 56px)) !important;
  max-height: calc(100vh - 56px) !important;
  overflow: auto !important;
  border: 1px solid var(--hd-border) !important;
  border-radius: 18px !important;
  background: var(--hd-surface) !important;
  color: var(--hd-text) !important;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.28) !important;
}

.action-modal-head {
  background: var(--hd-surface) !important;
  padding: 28px 32px 18px !important;
}

.action-modal-head .modal-title,
.modal-title {
  color: var(--hd-text) !important;
}

.modal-kicker {
  color: var(--hd-primary-2) !important;
}

.credential-card,
.support-status-card {
  background: color-mix(in srgb, var(--hd-surface) 88%, var(--hd-primary-2) 12%) !important;
  border-color: var(--hd-border) !important;
  color: var(--hd-text) !important;
}

.recharge-inline-field,
.action-field {
  padding: 0 32px !important;
}

.joined-input {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) 160px !important;
  border: 1px solid var(--hd-border-strong) !important;
  border-radius: 14px !important;
  background: var(--hd-surface-2) !important;
}

.joined-input .input {
  min-width: 0 !important;
  height: 62px !important;
  background: transparent !important;
}

.joined-input .btn {
  height: 62px !important;
  min-width: 160px !important;
  border-radius: 0 !important;
  border: 0 !important;
}

.action-modal-actions {
  padding: 22px 32px 30px !important;
}

.action-modal-actions .btn {
  min-height: 48px;
}

@media (max-width: 980px) {
  .studio-main {
    padding: 14px;
  }

  .header.studio-header {
    padding: 10px 14px;
  }

  .brand-block h1 {
    font-size: 30px !important;
  }

  .brand-block.ai-brand::before {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
  }

  .joined-input {
    grid-template-columns: 1fr !important;
  }

  .joined-input .btn {
    width: 100% !important;
  }
}

/* v2.10.28 hard overrides: prevent legacy button hover styles from winning. */
.brand-block.ai-brand::before {
  display: none !important;
}

.brand-wordmark {
  display: block !important;
  width: clamp(220px, 22vw, 360px) !important;
  height: auto !important;
  max-height: 86px !important;
  object-fit: contain !important;
  object-position: left center !important;
}

.brand-block.ai-brand {
  gap: 0 !important;
}

.brand-block.ai-brand p {
  margin-top: 6px !important;
}

.studio-panel .prompt-card .generate-btn,
.studio-panel .prompt-card .generate-btn.btn,
.studio-panel .prompt-card button.generate-btn,
.studio-panel .prompt-card button.generate-btn.btn-primary {
  min-height: 64px !important;
  border: 2px solid rgba(255, 255, 255, 0.28) !important;
  border-radius: 14px !important;
  background: linear-gradient(135deg, #071a45 0%, #0f766e 68%, #14b8a6 120%) !important;
  color: #ffffff !important;
  font-weight: 900 !important;
  box-shadow: 0 16px 34px rgba(7, 26, 69, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
  opacity: 1 !important;
}

.studio-panel .prompt-card .generate-btn:hover,
.studio-panel .prompt-card .generate-btn:focus,
.studio-panel .prompt-card .generate-btn:active,
.studio-panel .prompt-card .generate-btn.btn:hover,
.studio-panel .prompt-card button.generate-btn:hover,
.studio-panel .prompt-card button.generate-btn.btn-primary:hover {
  border: 2px solid rgba(20, 184, 166, 0.48) !important;
  background: linear-gradient(135deg, #050f2a 0%, #0b625c 66%, #0f988c 120%) !important;
  color: #ffffff !important;
  box-shadow: 0 18px 38px rgba(7, 26, 69, 0.28), 0 0 0 4px rgba(15, 118, 110, 0.16) !important;
  transform: translateY(-1px);
}

.studio-panel .prompt-card .generate-btn *,
.studio-panel .prompt-card .generate-btn:hover * {
  color: #ffffff !important;
}

.joined-input .btn.btn-primary,
.joined-input .btn.btn-primary:hover,
.joined-input button.btn-primary,
.joined-input button.btn-primary:hover {
  background: linear-gradient(135deg, #071a45 0%, #0f766e 74%, #14b8a6 120%) !important;
  color: #ffffff !important;
  border: 0 !important;
}

.action-modal .action-modal-actions .btn:hover,
.action-modal .action-modal-actions .btn:focus {
  color: var(--hd-text) !important;
  background: color-mix(in srgb, var(--hd-surface) 82%, var(--hd-primary-2) 18%) !important;
}

@media (max-width: 980px) {
  .brand-wordmark {
    width: min(260px, 68vw) !important;
    max-height: 68px !important;
  }
}

/* v2.10.29: modal centering, compact brand, and cohesive top navigation. */
.header.studio-header {
  min-height: 64px !important;
  padding: 10px 28px !important;
  background: linear-gradient(135deg, #07111f 0%, #0e2233 54%, #123a35 100%) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  box-shadow: 0 16px 38px rgba(7, 17, 31, 0.24) !important;
}

.studio-header .header-right .btn,
.studio-header .header-right button.btn,
.studio-header .balance-pill {
  min-height: 38px !important;
  border: 1px solid rgba(255, 255, 255, 0.16) !important;
  background: rgba(255, 255, 255, 0.08) !important;
  color: rgba(255, 255, 255, 0.9) !important;
  box-shadow: none !important;
}

.studio-header .header-right .btn:hover,
.studio-header .header-right button.btn:hover {
  border-color: rgba(45, 212, 191, 0.52) !important;
  background: rgba(45, 212, 191, 0.14) !important;
  color: #ffffff !important;
}

.studio-header .balance-label,
.studio-header .balance-empty {
  color: rgba(255, 255, 255, 0.62) !important;
}

.studio-header .balance-value {
  color: #ffffff !important;
}

.studio-header .recharge-btn {
  background: rgba(45, 212, 191, 0.16) !important;
  color: #ffffff !important;
}

.studio-header .api-key-btn {
  background: rgba(255, 255, 255, 0.11) !important;
}

.announcement-focus {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.14) !important;
  color: rgba(255, 255, 255, 0.72) !important;
}

.announcement-focus .announcement-type,
.announcement-focus .announcement-title,
.announcement-summary-window,
.announcement-count {
  color: rgba(255, 255, 255, 0.82) !important;
}

.studio-topbar {
  min-height: 88px !important;
  padding: 18px 34px !important;
}

.brand-block.ai-brand {
  display: block !important;
}

.brand-title {
  margin: 0 !important;
  display: inline-block !important;
  font-size: clamp(34px, 3.1vw, 52px) !important;
  line-height: 0.95 !important;
  font-weight: 950 !important;
  letter-spacing: 0 !important;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif !important;
  color: transparent !important;
  background:
    linear-gradient(115deg, #0f766e 0%, #071a45 34%, #0b1026 58%, #d946ef 78%, #f97316 100%);
  -webkit-background-clip: text;
  background-clip: text;
  text-shadow: 0 10px 28px rgba(7, 26, 69, 0.12);
}

html[data-theme="dark"] .brand-title {
  background:
    linear-gradient(115deg, #2dd4bf 0%, #f4f7fb 34%, #c4b5fd 72%, #fb923c 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.brand-block.ai-brand p {
  margin-top: 8px !important;
  font-size: 15px !important;
}

.workspace-canvas {
  min-height: calc(100vh - 216px) !important;
}

.studio-output {
  min-height: calc(100vh - 124px) !important;
}

.modal-mask {
  position: fixed !important;
  inset: 0 !important;
  z-index: 9999 !important;
  display: block !important;
  padding: 0 !important;
  overflow: auto !important;
  background: rgba(10, 19, 40, 0.58) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
}

.modal-mask > .modal,
.modal-mask > .action-modal,
.modal-mask > .announcement-modal,
.modal-mask > .contact-modal,
.modal-mask > .viewer {
  position: fixed !important;
  top: 50% !important;
  left: 50% !important;
  right: auto !important;
  bottom: auto !important;
  transform: translate(-50%, -50%) !important;
  margin: 0 !important;
  width: min(720px, calc(100vw - 48px)) !important;
  max-width: min(720px, calc(100vw - 48px)) !important;
  max-height: min(82vh, 760px) !important;
  overflow: auto !important;
}

.modal-mask > .action-modal {
  width: min(640px, calc(100vw - 48px)) !important;
}

.modal-mask > .contact-modal {
  width: min(760px, calc(100vw - 48px)) !important;
}

.modal-mask > .viewer {
  width: min(760px, calc(100vw - 48px)) !important;
}

.studio-panel .prompt-card .generate-btn,
.studio-panel .prompt-card button.generate-btn.btn-primary {
  background: linear-gradient(135deg, #101828 0%, #0f766e 72%, #13a295 100%) !important;
  border: 2px solid rgba(15, 118, 110, 0.34) !important;
}

.studio-panel .prompt-card .generate-btn:hover,
.studio-panel .prompt-card button.generate-btn.btn-primary:hover {
  background: linear-gradient(135deg, #07111f 0%, #0b625c 72%, #0f8b80 100%) !important;
  color: #ffffff !important;
}

@media (max-width: 980px) {
  .studio-topbar {
    min-height: auto !important;
    padding: 16px 18px !important;
  }

  .brand-title {
    font-size: 34px !important;
  }

  .modal-mask > .modal,
  .modal-mask > .action-modal,
  .modal-mask > .announcement-modal,
  .modal-mask > .contact-modal,
  .modal-mask > .viewer {
    width: calc(100vw - 28px) !important;
    max-width: calc(100vw - 28px) !important;
    max-height: 84vh !important;
  }
}