:root {
  --bg: #f5f6f7;
  --fg: #0f172a;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #0f766e;
  --surface: #ffffff;
  --radius: 12px;
  --font-main: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 20px 28px;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #0f172a;
  color: #f8fafc;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.title {
  font-size: 22px;
  font-weight: 700;
}

.subtitle {
  color: var(--muted);
  font-size: 13px;
}

.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--muted);
  font-size: 12px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.head-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
}

.card-desc {
  color: var(--muted);
  margin-top: 4px;
  font-size: 13px;
}

.form {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

label {
  font-weight: 600;
  font-size: 13px;
}

input[type="file"],
input[type="text"],
input[type="password"],
select,
input[type="range"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f9fafb;
  color: var(--fg);
  font-size: 14px;
}

input[type="range"] { padding: 0; }

small, .hint {
  color: var(--muted);
  font-size: 12px;
}

.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.checkbox input { width: auto; }

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 2px;
  align-items: center;
}

.inline-actions {
  justify-content: space-between;
  padding-top: 4px;
  align-items: center;
}

button,
.primary,
.ghost {
  cursor: pointer;
  border-radius: 10px;
  font-weight: 700;
  border: 1px solid transparent;
  background: none;
  padding: 10px 14px;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

button:disabled,
.primary.disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

button.primary,
.primary {
  background: var(--fg);
  color: #f8fafc;
  border-color: var(--fg);
}

button.ghost,
.ghost {
  border-color: var(--border);
  color: var(--fg);
}

.thin { padding: 8px 12px; font-size: 13px; }

.result {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfbfc;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.result-title { font-weight: 700; }
.result-desc { color: var(--muted); font-size: 13px; }

.meta {
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 10px;
  color: var(--fg);
  background: #ffffff;
  font-size: 13px;
  white-space: pre-wrap;
}

.preview-strip {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 8px;
}

.preview-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.advanced {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: #f9fafb;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hidden { display: none; }

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

.preview-card canvas {
  width: 100%;
  height: auto;
  border-radius: 6px;
  background: white;
  border: 1px solid var(--border);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

.footer {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.footer a { color: var(--fg); text-decoration: none; }
.footer-links { display: flex; gap: 10px; }

a.disabled { pointer-events: none; opacity: 0.6; }

@media (max-width: 720px) {
  .hero { flex-direction: column; align-items: flex-start; }
  .card-head { flex-direction: column; align-items: flex-start; }
  .result-header { flex-direction: column; align-items: flex-start; }
  .footer { flex-direction: column; gap: 8px; align-items: flex-start; }
}