:root {
  --bg: #f4f7f6;
  --surface: #ffffff;
  --surface-soft: #f7faf9;
  --ink: #102a2a;
  --ink-soft: #526a68;
  --ink-faint: #7f9491;
  --line: #e2ebe9;
  --line-strong: #cfdedb;
  --brand: #0f766e;
  --brand-dark: #0b5d57;
  --brand-soft: #e6f4f1;
  --brand-ring: rgba(15, 118, 110, 0.18);
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px -28px rgba(16, 42, 42, 0.35), 0 2px 8px rgba(16, 42, 42, 0.04);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(1100px 520px at 12% -8%, #dff2ed 0%, rgba(223, 242, 237, 0) 62%),
    radial-gradient(900px 460px at 96% 2%, #e8f0fb 0%, rgba(232, 240, 251, 0) 58%),
    var(--bg);
  font-family: var(--font);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

.page {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 56px;
}

/* Header */
.hero {
  padding: 8px 4px 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand);
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--brand);
  color: #fff;
  font-size: 17px;
  line-height: 1;
  box-shadow: 0 6px 14px -6px rgba(15, 118, 110, 0.65);
}

.hero h1 {
  margin: 16px 0 8px;
  font-size: clamp(32px, 5.2vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 800;
}

.hero p {
  max-width: 680px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 15.5px;
}

/* Tabs */
.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 5px;
  margin-bottom: 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(8px);
}

.tab {
  border: 0;
  border-radius: 999px;
  padding: 9px 22px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 14.5px;
  font-weight: 650;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.tab:hover {
  color: var(--ink);
}

.tab.is-active {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(16, 42, 42, 0.7);
}

.panel {
  display: none;
  animation: rise 0.28s ease both;
}

.panel.is-active {
  display: block;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.85fr);
  gap: 20px;
  align-items: start;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.form-card {
  padding: 26px;
}

/* Form */
.field {
  min-width: 0;
  margin: 0 0 20px;
  padding: 0;
  border: 0;
}

.field:last-child {
  margin-bottom: 0;
}

.field-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

label,
legend,
.field > .label {
  display: block;
  margin-bottom: 8px;
  padding: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.counter {
  font-size: 12px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

textarea,
input[type="text"],
input[type="number"],
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

textarea {
  display: block;
  min-height: 108px;
  padding: 13px 14px;
  resize: vertical;
  font-size: 15px;
  line-height: 1.6;
  outline: none;
}

input[type="text"],
input[type="number"],
select {
  height: 42px;
  padding: 0 12px;
  font-size: 14px;
  outline: none;
}

select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%23526a68' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

select:disabled {
  opacity: 0.62;
  cursor: not-allowed;
}

textarea:focus,
input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--brand);
  background-color: #fff;
  box-shadow: 0 0 0 3px var(--brand-ring);
}

textarea::placeholder,
input[type="text"]::placeholder {
  color: #9aacaa;
}

.quick-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 11px;
  background: var(--surface-soft);
  color: var(--ink-soft);
  font-size: 12px;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}

.chip:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
  color: var(--brand-dark);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-soft);
}

.seg {
  border: 1px solid transparent;
  border-radius: 9px;
  padding: 9px 6px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease,
    box-shadow 0.16s ease;
}

.seg:hover {
  color: var(--ink);
}

.seg.is-active {
  border-color: var(--line);
  background: #fff;
  color: var(--brand-dark);
  box-shadow: 0 2px 6px rgba(16, 42, 42, 0.06);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 16px;
}

.hint {
  margin: 6px 0 0;
  color: var(--ink-faint);
  font-size: 11.5px;
  line-height: 1.5;
}

.suffix-input,
.size-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.suffix-input:focus-within,
.size-inputs:focus-within {
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 3px var(--brand-ring);
}

.suffix-input input[type="number"],
.size-inputs input[type="number"] {
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.suffix-input input[type="number"]:focus,
.size-inputs input[type="number"]:focus {
  box-shadow: none;
}

.suffix-input > span,
.size-inputs > span {
  flex: none;
  color: var(--ink-faint);
  font-size: 12.5px;
}

.size-inputs input[type="number"] {
  width: 74px;
}

.custom-size {
  padding: 14px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.custom-size > label {
  margin-bottom: 8px;
}

.notice {
  margin-top: 18px;
  padding: 11px 13px;
  border: 1px solid #f3c7c3;
  border-radius: var(--radius-sm);
  background: var(--danger-bg);
  color: var(--danger);
  font-size: 13px;
}

/* Preview */
.preview-card {
  position: sticky;
  top: 20px;
  padding: 20px;
}

.preview-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 300px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(45deg, #f0f5f4 25%, transparent 25%) 0 0 / 18px 18px,
    linear-gradient(-45deg, #f0f5f4 25%, transparent 25%) 0 9px / 18px 18px,
    linear-gradient(45deg, transparent 75%, #f0f5f4 75%) 9px -9px / 18px 18px,
    linear-gradient(-45deg, transparent 75%, #f0f5f4 75%) -9px 0 / 18px 18px,
    #fbfdfc;
  overflow: hidden;
}

#preview-canvas {
  display: block;
  max-width: 100%;
  max-height: 560px;
  width: auto;
  height: auto;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 10px 26px -18px rgba(16, 42, 42, 0.5);
  image-rendering: pixelated;
}

.preview-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--ink-faint);
  font-size: 13px;
  text-align: center;
  pointer-events: none;
}

.preview-placeholder::before {
  content: "";
  position: absolute;
  width: 54px;
  height: 54px;
  margin-top: -44px;
  border: 2px dashed var(--line-strong);
  border-radius: 12px;
}

.preview-meta {
  min-height: 38px;
  margin: 12px 2px 4px;
  color: var(--ink-soft);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.preview-meta span {
  display: inline-block;
  margin-right: 10px;
}

.preview-meta .dot::before {
  content: "·";
  margin-right: 10px;
  color: var(--ink-faint);
}

.action-row {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 42px;
  padding: 10px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 650;
  text-decoration: none;
  transition: background 0.16s ease, border-color 0.16s ease, transform 0.1s ease,
    box-shadow 0.16s ease, opacity 0.16s ease;
}

.btn:hover:not(:disabled) {
  border-color: var(--brand);
  color: var(--brand-dark);
  background: var(--brand-soft);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

.btn.primary {
  flex: 1;
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 20px -12px rgba(15, 118, 110, 0.9);
}

.btn.primary:hover:not(:disabled) {
  border-color: var(--brand-dark);
  background: var(--brand-dark);
  color: #fff;
}

.fineprint {
  margin: 12px 2px 0;
  color: var(--ink-faint);
  font-size: 11px;
}

/* Scan */
.drop-zone {
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: 250px;
  padding: 28px;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  text-align: center;
  transition: border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
  outline: none;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.is-dragover {
  border-color: var(--brand);
  background: var(--brand-soft);
  box-shadow: 0 0 0 4px var(--brand-ring);
}

.drop-zone svg {
  width: 42px;
  height: 42px;
  color: var(--brand);
  stroke-width: 1.6;
}

.drop-zone p {
  margin: 2px 0 0;
  font-size: 14px;
}

.drop-zone .hint {
  margin-top: 3px;
}

.scan-preview {
  display: grid;
  place-items: center;
  margin-top: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.scan-preview img {
  display: block;
  max-width: 100%;
  max-height: 320px;
  border-radius: 8px;
  box-shadow: 0 8px 24px -16px rgba(16, 42, 42, 0.5);
}

.scan-status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 13px;
}

.scan-status.is-error {
  background: var(--danger-bg);
  color: var(--danger);
}

.results {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.result {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.result-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 9px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 9px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.badge.muted {
  background: #eef2f1;
  color: var(--ink-soft);
}

.result-text {
  margin: 0;
  max-height: 200px;
  overflow: auto;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.result-actions .btn {
  min-height: 34px;
  padding: 6px 11px;
  font-size: 12px;
}

.tips {
  padding: 24px;
}

.tips h2 {
  margin: 0 0 12px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.tips ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 13px;
}

.tips li {
  margin: 8px 0;
}

.tips code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-family: var(--mono);
  font-size: 11.5px;
}

.scan-note {
  margin-top: 18px;
  padding: 12px;
  border-left: 3px solid var(--brand);
  border-radius: 0 8px 8px 0;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 12px;
}

/* Merge payment codes */
.merge-head h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.merge-head .hint {
  margin: 6px 0 20px;
}

.merge-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.merge-slot {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.merge-slot-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 13.5px;
  font-weight: 650;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.tag-wechat {
  background: #e8f7ea;
  color: #07883f;
}

.tag-alipay {
  background: #e8f1ff;
  color: #1667cc;
}

.merge-drop {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1;
  padding: 10px;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink-faint);
  font-size: 12.5px;
  text-align: center;
  overflow: hidden;
  outline: none;
  transition: border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.merge-drop:hover,
.merge-drop:focus-visible {
  border-color: var(--brand);
  background: var(--brand-soft);
  box-shadow: 0 0 0 4px var(--brand-ring);
}

.merge-drop img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 6px;
  background: #fff;
  object-fit: contain;
}

.merge-status {
  min-height: 34px;
  margin: 10px 2px 0;
  color: var(--ink-faint);
  font-size: 12px;
  line-height: 1.5;
  word-break: break-all;
}

.merge-status.is-ok {
  color: var(--brand-dark);
}

.merge-status.is-error {
  color: var(--danger);
}

.merge-params {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.merge-param {
  min-width: 0;
}

.merge-param label {
  display: block;
  margin-bottom: 4px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 600;
}

.merge-param select {
  height: 38px;
  padding: 0 30px 0 10px;
  font-size: 13px;
}

.merge-params-hint {
  margin: 8px 2px 0;
  color: var(--ink-faint);
  font-size: 11.5px;
  line-height: 1.5;
}

.merge-generate {
  width: 100%;
  margin-top: 18px;
}

#merge-canvas {
  display: block;
  width: 100%;
  max-width: 520px;
  height: auto;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 10px 26px -18px rgba(16, 42, 42, 0.5);
  image-rendering: pixelated;
}

/* Camera scan */
.camera-stage {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  min-height: 220px;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: #0b1413;
}

.camera-stage video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  visibility: hidden;
}

.camera-stage.is-live video {
  visibility: visible;
}

.camera-frame {
  position: absolute;
  inset: 0;
  width: 56%;
  aspect-ratio: 1;
  margin: auto;
  border: 2px solid rgba(255, 255, 255, 0.88);
  border-radius: 18px;
  box-shadow: 0 0 0 9999px rgba(6, 18, 17, 0.26);
  pointer-events: none;
}

.camera-overlay {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  margin: 0;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(6, 18, 17, 0.6);
  color: rgba(255, 255, 255, 0.9);
  font-size: 12.5px;
  white-space: nowrap;
}

.camera-status {
  min-height: 24px;
  margin: 10px 2px 0;
  color: var(--ink-soft);
  font-size: 12.5px;
  line-height: 1.5;
  word-break: break-all;
}

.camera-status.is-ok {
  color: var(--brand-dark);
}

.camera-status.is-error {
  color: var(--danger);
}

.camera-result-stage {
  place-items: stretch;
  align-content: start;
  overflow: auto;
  padding: 18px;
}

.camera-result {
  display: flex;
  width: 100%;
  flex-direction: column;
  gap: 8px;
}

.camera-result-label {
  margin: 0;
  color: var(--ink-faint);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.camera-result-text {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  word-break: break-all;
  white-space: pre-wrap;
}

.camera-result-actions {
  flex-wrap: wrap;
}

.camera-result-actions .btn {
  flex: 1 1 110px;
}

.empty-state {
  padding: 18px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  color: var(--ink-faint);
  font-size: 13px;
  text-align: center;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 6px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  vertical-align: -2px;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-top: 36px;
  padding: 18px 4px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 12px;
}

.footer strong {
  color: var(--ink-soft);
  font-weight: 600;
}

/* Style studio */
.style-section {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.style-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.style-head h2 {
  margin: 0;
  font-size: 15.5px;
  letter-spacing: -0.01em;
}

.style-head p {
  margin: 3px 0 0;
  color: var(--ink-faint);
  font-size: 12px;
}

.style-badge {
  flex: none;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.style-block {
  margin-bottom: 12px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.style-block:last-child {
  margin-bottom: 0;
}

.block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 11px;
}

.block-head h3 {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.01em;
}

.block-meta {
  color: var(--ink-faint);
  font-size: 10.5px;
}

.block-meta.is-warn {
  color: #b45309;
}

.subpanel {
  margin-top: 11px;
  padding: 12px;
  border: 1px dashed var(--line-strong);
  border-radius: 11px;
  background: #fff;
}

.field.compact {
  margin-bottom: 12px;
}

.field.compact:last-child {
  margin-bottom: 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 16px;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  margin-top: 10px;
}

.range-row:first-child {
  margin-top: 0;
}

.range-row label {
  flex: none;
  width: 54px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 11.5px;
  font-weight: 650;
}

.range-row input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--brand);
  cursor: pointer;
}

.range-row output {
  flex: none;
  width: 42px;
  color: var(--ink-faint);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.range-row.is-disabled {
  opacity: 0.48;
}

.color-control {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  transition: border-color 0.16s ease, opacity 0.16s ease;
}

.color-control label {
  flex: none;
  margin: 0;
  color: var(--ink-soft);
  font-size: 11.5px;
  font-weight: 650;
}

.color-control input[type="color"] {
  flex: none;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  border-radius: 7px;
  background: none;
  cursor: pointer;
}

.color-control input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-control input[type="color"]::-webkit-color-swatch {
  border: 1px solid rgba(16, 42, 42, 0.14);
  border-radius: 7px;
}

.color-control input[type="color"]::-moz-color-swatch {
  border: 1px solid rgba(16, 42, 42, 0.14);
  border-radius: 7px;
}

.color-control span {
  margin-left: auto;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: lowercase;
}

.color-control.is-disabled {
  opacity: 0.52;
}

.file-row,
.url-row,
.inline-row,
.thumb-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 9px;
  min-width: 0;
}

.file-row:first-child,
.url-row:first-child {
  margin-top: 0;
}

.url-row input[type="text"] {
  flex: 1;
  min-width: 0;
  height: 36px;
  font-size: 12.5px;
}

.btn.small {
  flex: none;
  min-height: 34px;
  padding: 6px 11px;
  font-size: 12px;
}

.file-name {
  min-width: 0;
  overflow: hidden;
  color: var(--ink-faint);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.thumb-row img {
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  object-fit: cover;
}

.logo-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 7px;
  max-height: 248px;
  overflow: auto;
  padding: 2px;
}

.logo-tile {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  transition: border-color 0.14s ease, transform 0.14s ease, box-shadow 0.14s ease;
}

.logo-tile:hover {
  border-color: var(--brand);
  transform: translateY(-1px);
}

.logo-tile.is-active {
  border-color: var(--brand);
  box-shadow: 0 0 0 2px var(--brand-ring);
}

.logo-tile svg {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 7px;
}

.theme-presets {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  margin-top: 13px;
}

.theme {
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--ink-soft);
  font-size: 10.5px;
  font-weight: 650;
}

.theme .swatch {
  display: block;
  height: 22px;
  margin-bottom: 4px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--a), var(--b));
}

.theme:hover,
.theme.is-active {
  border-color: var(--brand);
  color: var(--brand-dark);
}

.status-line {
  margin: 8px 0 0;
  color: var(--brand-dark);
  font-size: 11.5px;
  line-height: 1.45;
}

.status-line.is-error {
  color: var(--danger);
}

@media (max-width: 860px) {
  .page {
    width: min(100% - 28px, 720px);
    padding-top: 28px;
  }

  .layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .preview-card {
    position: static;
  }

  .hero h1 {
    margin-top: 12px;
  }

  .form-card,
  .tips {
    padding: 20px;
  }
}

@media (max-width: 540px) {
  .page {
    width: calc(100% - 20px);
    padding: 18px 0 40px;
  }

  .hero {
    padding: 6px 2px 20px;
  }

  .hero p {
    font-size: 14px;
  }

  .tabs {
    display: flex;
    width: 100%;
  }

  .tab {
    flex: 1;
    padding: 9px 6px;
    font-size: 13px;
    text-align: center;
    white-space: nowrap;
  }

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

  .logo-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .theme-presets {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .style-block {
    padding: 13px;
  }

  .range-row label {
    width: 48px;
  }

  #preview-canvas {
    max-height: 420px;
  }

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

  .merge-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .preview-stage {
    min-height: 240px;
  }

  .footer {
    justify-content: flex-start;
  }
}