:root {
  --bg: #f5f7f4;
  --surface: rgba(255, 255, 252, 0.9);
  --surface-strong: #ffffff;
  --text: #17201b;
  --ink: #17201b;
  --muted: #627168;
  --line: rgba(22, 18, 15, 0.1);
  --accent: #1d6f82;
  --accent-dark: #12343c;
  --accent-warm: #b7652f;
  --success: #2a6b46;
  --danger: #9b3425;
  --shadow: 0 22px 70px rgba(22, 48, 55, 0.13);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", sans-serif;
  color: var(--text);
  overflow-x: hidden;
  background:
    radial-gradient(circle at top left, rgba(29, 111, 130, 0.16), transparent 28%),
    radial-gradient(circle at 82% 8%, rgba(183, 101, 47, 0.12), transparent 22%),
    linear-gradient(180deg, #f8fbf8 0%, #e6eee9 100%);
}

.page {
  width: min(1600px, calc(100% - 64px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.hero {
  padding: 16px 0 24px;
}

.tag {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 12px;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: 64px;
  line-height: 0.95;
  font-weight: 900;
}

.lead {
  max-width: 620px;
  margin: 18px 0 0;
  font-size: 18px;
  line-height: 1.75;
  color: var(--muted);
}

.flow-hints {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.flow-hints span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(29, 111, 130, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
}

.workspace {
  display: grid;
  grid-template-columns: 420px minmax(0, 1fr);
  gap: 20px;
  min-width: 0;
}

.panel {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.upload-panel {
  padding: 22px;
  display: grid;
  gap: 18px;
  align-content: start;
}

.picker {
  display: grid;
  gap: 8px;
  padding: 28px 20px;
  min-height: 240px;
  border-radius: 8px;
  border: 1.5px dashed rgba(29, 111, 130, 0.36);
  background: linear-gradient(180deg, rgba(239, 248, 248, 0.9), rgba(255, 255, 255, 0.78));
  cursor: pointer;
  align-content: center;
  text-align: center;
}

.picker-textarea {
  min-height: auto;
  cursor: default;
  text-align: left;
  align-content: start;
}

.picker input[type="file"] {
  display: none;
}

.picker input[type="text"] {
  display: block;
  width: 100%;
}

.picker-title {
  font-size: 28px;
  font-weight: 700;
}

.picker-copy {
  color: var(--muted);
}

.picker-kicker {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.template-picker-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 104px;
  gap: 14px 18px;
  align-items: center;
  padding: 16px;
  border: 1.5px solid rgba(29, 111, 130, 0.44);
  border-radius: 8px;
  background: #f7fbfa;
  box-shadow: inset 4px 0 0 var(--accent);
}

.template-picker-card.is-custom {
  box-shadow: inset 4px 0 0 var(--accent-warm);
}

.template-picker-card.is-selected {
  border-color: rgba(29, 111, 130, 0.62);
}

.template-picker-card.has-error {
  border-color: rgba(155, 52, 37, 0.45);
  box-shadow: inset 4px 0 0 var(--danger);
}

.template-picker-copy {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.template-picker-copy .picker-title {
  font-size: 19px;
}

.template-picker-copy .picker-copy {
  font-size: 13px;
  line-height: 1.6;
}

.template-picker-thumb {
  position: relative;
  width: 104px;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(29, 111, 130, 0.2);
  border-radius: 6px;
  background: #fff;
}

.template-picker-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.template-check {
  position: absolute;
  top: 6px;
  right: 6px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 2px 8px rgba(23, 32, 27, 0.25);
}

.template-upload-link {
  justify-self: start;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.template-upload-link:hover {
  color: var(--accent-dark);
}

.template-picker-card > input[type="file"] {
  display: none;
}

.picker textarea {
  width: 100%;
  min-height: 140px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  font: 13px/1.7 "JetBrains Mono", monospace;
  resize: vertical;
  background: rgba(255, 255, 255, 0.74);
  color: var(--text);
}

.generate-button {
  min-height: 56px;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #f7fffd;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
}

.generate-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(77, 31, 14, 0.24);
}

.generate-button:disabled {
  opacity: 0.6;
  cursor: wait;
  transform: none;
  box-shadow: none;
}

.generate-count-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 96px;
  gap: 10px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.generate-count-control input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
  color: var(--text);
  font: 14px/1.2 "JetBrains Mono", monospace;
}

.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf5;
  color: var(--ink);
  font: 600 15px/1 "JetBrains Mono", monospace;
  cursor: pointer;
  touch-action: manipulation;
}

.secondary-button:disabled {
  opacity: 0.58;
  cursor: not-allowed;
  box-shadow: none;
}

.accent-button {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #f7fffd;
  border-color: transparent;
}

.secondary-button:hover {
  border-color: var(--accent);
  box-shadow: 0 10px 24px rgba(77, 31, 14, 0.12);
}

.secondary-button:disabled:hover {
  border-color: var(--line);
  box-shadow: none;
}

.button-loading {
  cursor: wait;
}

.button-loading::before {
  content: "";
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  border: 2px solid rgba(29, 111, 130, 0.22);
  border-top-color: var(--accent);
  border-radius: 999px;
  animation: button-spin 800ms linear infinite;
}

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

.action-card,
.status-card {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.66);
}

.stylize-progress {
  display: grid;
  gap: 8px;
}

.stylize-progress[hidden] {
  display: none;
}

.stylize-progress-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(29, 111, 130, 0.12);
}

.stylize-progress-bar {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background:
    linear-gradient(90deg, var(--accent-warm), var(--accent)),
    repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, 0.18) 0,
      rgba(255, 255, 255, 0.18) 8px,
      rgba(255, 255, 255, 0) 8px,
      rgba(255, 255, 255, 0) 16px
    );
  background-size: 100% 100%, 32px 32px;
  transition: width 240ms ease;
  animation: progress-stripes 800ms linear infinite;
}

@keyframes progress-stripes {
  from {
    background-position: 0 0, 0 0;
  }

  to {
    background-position: 0 0, 32px 0;
  }
}

.stylize-progress span:last-child {
  color: var(--accent-dark);
  font: 700 12px/1.5 "JetBrains Mono", monospace;
}

.wechat-operation-progress {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid rgba(29, 111, 130, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
}

.wechat-operation-progress[hidden] {
  display: none;
}

.wechat-operation-progress-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(29, 111, 130, 0.12);
}

.wechat-operation-progress-bar {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background:
    linear-gradient(90deg, var(--accent), var(--accent-warm)),
    repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, 0.2) 0,
      rgba(255, 255, 255, 0.2) 8px,
      rgba(255, 255, 255, 0) 8px,
      rgba(255, 255, 255, 0) 16px
    );
  background-size: 100% 100%, 32px 32px;
  transition: width 240ms ease;
  animation: progress-stripes 800ms linear infinite;
}

.wechat-operation-progress span:last-child {
  color: var(--accent-dark);
  font: 700 12px/1.5 "JetBrains Mono", monospace;
}

.wechat-operation-progress[data-tone="error"] .wechat-operation-progress-bar {
  background:
    linear-gradient(90deg, var(--danger), var(--accent-warm)),
    repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, 0.18) 0,
      rgba(255, 255, 255, 0.18) 8px,
      rgba(255, 255, 255, 0) 8px,
      rgba(255, 255, 255, 0) 16px
    );
}

.status {
  margin: 0;
  font: 13px/1.6 "JetBrains Mono", monospace;
  color: var(--muted);
  max-width: 100%;
  min-width: 0;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  word-break: break-word;
}

.status[data-tone="ready"],
.status[data-tone="working"] {
  color: var(--accent);
}

.status[data-tone="success"] {
  color: var(--success);
}

.status[data-tone="error"] {
  color: var(--danger);
}

.preview-panel {
  padding: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  min-width: 0;
}

@media (min-width: 1280px) {
  .preview-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.preview-block,
.prompt-box {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.block-title {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.image-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  min-width: 0;
  min-height: 320px;
  max-height: min(68vh, 560px);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.75), rgba(242, 233, 223, 0.95));
  display: grid;
  place-items: center;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  min-width: 0;
  min-height: 0;
}

.image-frame img:not([src]),
.image-frame img[src=""] {
  display: none;
}

.download-image-button {
  position: absolute;
  bottom: 12px;
  right: 12px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(18, 52, 60, 0.88);
  box-shadow: 0 10px 22px rgba(18, 52, 60, 0.22);
  display: grid;
  place-items: center;
  opacity: 0.88;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.download-image-button:hover {
  transform: translateY(-1px);
  opacity: 1;
  background: rgba(18, 52, 60, 0.98);
  box-shadow: 0 14px 28px rgba(18, 52, 60, 0.28);
}

.download-image-button[hidden] {
  display: none;
}

.download-icon {
  position: relative;
  width: 16px;
  height: 18px;
  display: block;
  border-bottom: 2px solid #fff;
}

.download-icon::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 1px;
  width: 2px;
  height: 12px;
  background: #fff;
}

.download-icon::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  width: 8px;
  height: 8px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
}

.empty-text {
  max-width: 100%;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
  overflow-wrap: anywhere;
}

.empty-text[hidden] {
  display: none !important;
}

.image-frame > .empty-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  max-width: none;
  padding: 16px;
}

.preview-block > .empty-text {
  position: static;
  display: block;
  padding: 14px;
  border: 1px dashed rgba(29, 111, 130, 0.22);
  border-radius: 8px;
  background: rgba(247, 252, 250, 0.72);
}

.prompt-box {
  grid-column: 1 / -1;
}

.prompt-box pre {
  margin: 0;
  min-height: 120px;
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--text);
  font: 13px/1.8 "JetBrains Mono", monospace;
  white-space: pre-wrap;
  overflow-x: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.wechat-material-panel {
  gap: 16px;
  padding: 18px;
  border-radius: 8px;
  border: 1px solid rgba(29, 111, 130, 0.16);
  background: linear-gradient(180deg, rgba(247, 252, 250, 0.82), rgba(255, 255, 255, 0.72));
}

.section-heading {
  display: grid;
  gap: 6px;
}

.section-copy {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.credential-card {
  padding: 14px;
  border: 1px solid rgba(29, 111, 130, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.64);
}

.wechat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
}

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

.wechat-upload-grid,
.wechat-search-grid {
  grid-template-columns: minmax(220px, 1fr) minmax(180px, auto);
}

.wechat-grid label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.wechat-grid input,
.wechat-grid textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text);
  font: 13px/1.5 "JetBrains Mono", monospace;
}

.wechat-grid input:focus,
.wechat-grid textarea:focus {
  outline: 3px solid rgba(29, 111, 130, 0.18);
  border-color: var(--accent);
}

.wechat-grid textarea {
  resize: vertical;
}

.wechat-result {
  margin: 0;
  min-height: 90px;
  max-height: 220px;
  overflow: auto;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--text);
  font: 12px/1.7 "JetBrains Mono", monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.wechat-result[hidden],
.wechat-material-table-wrap[hidden] {
  display: none;
}

.wechat-material-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
}

.wechat-material-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 12px;
  line-height: 1.5;
}

.wechat-material-table th,
.wechat-material-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(22, 18, 15, 0.08);
  text-align: left;
  vertical-align: middle;
}

.wechat-material-table th {
  color: var(--muted);
  background: rgba(247, 252, 250, 0.92);
  font-weight: 700;
  white-space: nowrap;
}

.wechat-material-table td {
  color: var(--text);
  overflow-wrap: anywhere;
}

.wechat-material-table a {
  color: var(--accent);
}

.wechat-view-button {
  min-height: 40px;
  padding: 0 12px;
  white-space: nowrap;
}

.wechat-material-empty-cell {
  text-align: center;
  color: var(--muted);
}

.wechat-material-frame {
  min-height: 260px;
}

.wechat-preview-loading {
  border-color: rgba(29, 111, 130, 0.34);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(239, 248, 248, 0.96)),
    linear-gradient(90deg, transparent, rgba(29, 111, 130, 0.08), transparent);
  background-size: 100% 100%, 220px 100%;
  animation: preview-shimmer 1200ms ease-in-out infinite;
}

.wechat-preview-loading::before {
  content: "";
  position: absolute;
  top: 18px;
  right: 18px;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(29, 111, 130, 0.2);
  border-top-color: var(--accent);
  border-radius: 999px;
  animation: button-spin 800ms linear infinite;
}

.wechat-preview-loading .empty-text {
  z-index: 1;
  color: var(--accent-dark);
  font-weight: 700;
}

@keyframes preview-shimmer {
  from {
    background-position: 0 0, -220px 0;
  }

  to {
    background-position: 0 0, calc(100% + 220px) 0;
  }
}

.batch-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(118px, 1fr));
  gap: 10px;
}

.batch-result-grid[hidden] {
  display: none;
}

.generated-result-card {
  display: grid;
  gap: 8px;
  padding: 8px;
  border: 2px solid transparent;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  cursor: pointer;
  text-align: center;
  font: 700 12px/1.4 "JetBrains Mono", monospace;
}

.generated-result-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 6px;
  background: #fff;
}

.generated-result-card.selected {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: rgba(29, 111, 130, 0.12);
  box-shadow: 0 0 0 3px rgba(29, 111, 130, 0.1);
}

.reference-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
  justify-content: flex-start;
  width: 100%;
  padding: 14px;
}

.reference-thumb {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  display: block;
}

@media (max-width: 960px) {
  .page {
    width: min(100% - 28px, 100%);
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    grid-template-columns: 1fr;
  }

  .wechat-grid {
    grid-template-columns: 1fr;
  }
}

.mask-controls {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.55);
}

.small-title {
  font-size: 18px;
  margin: 0;
}

.mask-control-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mask-control-grid label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.mask-control-grid input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font: 14px/1.2 "JetBrains Mono", monospace;
}

.shape-selector {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.shape-option {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf5;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}

.shape-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.shape-option.active {
  border-color: var(--accent);
  background: rgba(166, 76, 34, 0.12);
  color: var(--accent-dark);
}

.nudge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.nudge-grid button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fffaf5;
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
}

.nudge-grid button:hover {
  border-color: var(--accent);
}

.inline-check {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--ink);
  font-size: 14px;
}

.inline-check input {
  width: 16px;
  height: 16px;
}

.preview-block {
  display: grid;
  gap: 10px;
}

.crop-block {
  grid-column: 1 / -1;
}

.crop-canvas-container {
  display: grid;
  gap: 12px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(255, 246, 236, 0.9), rgba(255, 255, 255, 0.8));
  border-radius: 8px;
  border: 2px solid var(--accent);
  box-shadow: 0 4px 12px rgba(166, 76, 34, 0.15);
}

#cropCanvas {
  width: 100%;
  max-height: 600px;
  border: 3px solid var(--accent);
  border-radius: 8px;
  cursor: crosshair;
  background: #fff;
  display: block;
  margin: 0 auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

#cropCanvas:hover {
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.4);
  border-color: #ff6b35;
}

#cropCanvas:active {
  cursor: grabbing;
}

.crop-info-bar {
  display: grid;
  gap: 12px;
}

.crop-coords {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.crop-coords label {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  padding: 8px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  border: 1px solid var(--line);
  font-size: 13px;
  font-family: "JetBrains Mono", monospace;
}

.crop-hint {
  margin: 0;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

.qr-input-mode-selector {
  display: flex;
  gap: 0;
  margin-bottom: 16px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.mode-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 12px;
  cursor: pointer;
  transition: all 0.25s ease;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  border: none;
  position: relative;
}

.mode-tab input[type="radio"] {
  display: none;
}

.mode-tab-text {
  white-space: nowrap;
}

.mode-tab:hover {
  background: rgba(255, 246, 236, 0.8);
  color: var(--text);
}

.mode-tab.active {
  background: linear-gradient(135deg, rgba(166, 76, 34, 0.12), rgba(255, 246, 236, 0.95));
  color: var(--accent);
  font-weight: 700;
  box-shadow: inset 0 -3px 0 var(--accent);
}

.url-input-container {
  width: 100%;
}

.url-input-box {
  display: grid;
  gap: 10px;
  padding: 24px 20px;
  border-radius: 8px;
  border: 2px dashed var(--accent);
  background: linear-gradient(180deg, rgba(255, 246, 236, 0.95), rgba(255, 255, 255, 0.85));
}

.url-input-label {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-dark);
}

.url-text-input {
  width: 100%;
  padding: 16px 18px;
  border: 2px solid var(--accent);
  border-radius: 8px;
  font-size: 17px;
  font-family: "JetBrains Mono", monospace;
  background: #fff;
  color: var(--text);
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(166, 76, 34, 0.08);
}

.url-text-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(166, 76, 34, 0.2), 0 4px 16px rgba(166, 76, 34, 0.15);
}

.url-text-input::placeholder {
  color: #bbb;
}

.url-input-hint {
  font-size: 13px;
  color: var(--muted);
}

.convert-url-button {
  width: 100%;
  margin-top: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-weight: 600;
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 100%);
    padding: 18px 0 28px;
  }

  .hero {
    padding: 8px 0 18px;
  }

  h1 {
    font-size: 40px;
    line-height: 1.05;
  }

  .lead {
    font-size: 16px;
    line-height: 1.6;
  }

  .upload-panel,
  .preview-panel {
    padding: 14px;
  }

  .picker {
    min-height: 160px;
    padding: 20px 14px;
  }

  .picker-title {
    font-size: 22px;
  }

  .mask-control-grid,
  .crop-coords,
  .nudge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .image-frame {
    min-height: 240px;
    max-height: none;
  }

  .wechat-material-panel {
    padding: 14px;
  }

  .wechat-auth-grid,
  .wechat-upload-grid,
  .wechat-search-grid {
    grid-template-columns: 1fr;
  }

  .secondary-button,
  .generate-button {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .page {
    width: min(100% - 14px, 100%);
  }

  h1 {
    font-size: 34px;
  }

  .qr-input-mode-selector {
    flex-direction: column;
  }

  .shape-selector {
    grid-template-columns: 1fr;
  }

  .mode-tab {
    min-height: 48px;
    padding: 12px 8px;
  }

  .mask-control-grid,
  .crop-coords,
  .nudge-grid {
    grid-template-columns: 1fr;
  }

  .image-frame {
    min-height: 210px;
  }

  .template-picker-card {
    grid-template-columns: minmax(0, 1fr) 82px;
    gap: 12px;
    padding: 12px;
  }

  .template-picker-thumb {
    width: 82px;
  }

  .download-image-button {
    right: 8px;
    bottom: 8px;
  }

  .prompt-box pre,
  .wechat-result,
  .status {
    font-size: 12px;
  }
}