@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600&display=swap');

:root {
  --bg: #f5f1e9;
  --card: #faf8f4;
  --text: #3d342c;
  --muted: #8a7b6e;
  --brown: #8b7361;
  --brown-dark: #6d5a4c;
  --border: #e8e0d4;
  --radius: 16px;
  --shadow: 0 4px 24px rgba(61, 52, 44, 0.06);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 420px;
  margin: 0 auto;
  padding: 1rem 1rem 2.5rem;
}

.header { text-align: center; padding: 1.25rem 0 1rem; }
.brand { margin: 0; font-size: 1.5rem; font-weight: 600; letter-spacing: 0.12em; }
.tagline { margin: 0.4rem 0 0; font-size: 0.8rem; color: var(--muted); font-weight: 400; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.1rem;
  margin-bottom: 0.85rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.section-title {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  font-weight: 600;
}
.section-title .hint {
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--muted);
}

.upload-zone {
  min-height: 160px;
  border: 2px dashed var(--brown);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 1rem;
}
.upload-inner { text-align: center; }
.upload-icon { font-size: 2rem; color: var(--brown); line-height: 1; }
#uploadHint { margin: 0.5rem 0 0; font-size: 0.85rem; color: var(--muted); }
.preview {
  max-width: 100%;
  max-height: 280px;
  border-radius: 12px;
  margin-top: 0.75rem;
  object-fit: contain;
}
.hidden { display: none !important; }

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}
.field { display: flex; flex-direction: column; gap: 0.25rem; }
.field span { font-size: 0.75rem; color: var(--muted); }
.field select {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.45rem 0.5rem;
  font-family: inherit;
  font-size: 0.8rem;
  background: #fff;
  color: var(--text);
}

/* 尺寸选择 - 与截图一致 */
.size-presets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.size-preset {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.55rem 0.35rem;
  text-align: center;
  cursor: pointer;
  background: #fff;
  transition: all 0.2s;
}
.size-preset.active {
  background: var(--brown);
  border-color: var(--brown);
  color: #fff;
}
.size-preset .name { font-size: 0.82rem; font-weight: 600; display: block; }
.size-preset .range { font-size: 0.7rem; opacity: 0.85; display: block; margin-top: 2px; }
.size-preset .desc { font-size: 0.62rem; opacity: 0.75; display: block; margin-top: 2px; line-height: 1.3; }
.size-preset:not(.active) .range,
.size-preset:not(.active) .desc { color: var(--muted); }

.size-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}
.size-field span {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
}
.input-unit {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  overflow: hidden;
}
.input-unit input {
  flex: 1;
  border: none;
  padding: 0.5rem 0.55rem;
  font-family: inherit;
  font-size: 0.85rem;
  min-width: 0;
  background: transparent;
}
.input-unit em {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--muted);
  padding-right: 0.5rem;
}

.btn-generate {
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  background: var(--brown);
  color: #fff;
  cursor: pointer;
  margin: 0.25rem 0 0.5rem;
  box-shadow: 0 6px 20px rgba(139, 115, 97, 0.35);
}
.btn-generate:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.status {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  min-height: 1.4em;
  margin-bottom: 0.5rem;
}

/* 电商文案 - 原版式 */
.copy-panel { padding: 1.15rem 1rem 1.25rem; }
.copy-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}
.copy-panel-title { margin: 0; font-size: 1rem; font-weight: 600; }
.copy-platform-tag {
  font-size: 0.72rem;
  color: var(--brown);
  border: 1px solid rgba(139, 115, 97, 0.45);
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
}
.copy-panel-desc { margin: 0 0 1rem; font-size: 0.75rem; color: var(--muted); }
.copy-fields { display: flex; flex-direction: column; gap: 0.85rem; }
.copy-field {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.65rem 0.7rem 0.7rem;
}
.copy-field-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin-bottom: 0.45rem;
}
.copy-num {
  font-size: 0.7rem;
  color: var(--brown);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.copy-field-label { font-size: 0.82rem; font-weight: 600; }
.copy-field-tip { font-size: 0.68rem; color: var(--muted); }
.copy-char { font-size: 0.68rem; color: var(--muted); margin-left: auto; }
.copy-char em { font-style: normal; color: var(--brown); }
.copy-field-btn {
  border: none;
  background: var(--brown);
  color: #fff;
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
}
.copy-field-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.6rem;
  font-family: inherit;
  font-size: 0.84rem;
  line-height: 1.5;
  resize: none;
  color: var(--text);
  background: #faf8f4;
}
.copy-divider {
  text-align: center;
  margin: 1.1rem 0 0.85rem;
  position: relative;
}
.copy-divider::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: rgba(184, 149, 106, 0.35);
}
.copy-divider span {
  position: relative;
  background: var(--card);
  padding: 0 0.75rem;
  font-size: 0.78rem;
  color: var(--brown);
  font-weight: 600;
}
.copy-selling-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}
.copy-sell-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 0.55rem;
  position: relative;
}
.copy-sell-num {
  display: block;
  font-size: 0.65rem;
  color: var(--brown);
  margin-bottom: 0.35rem;
  font-weight: 600;
}
.copy-sell-card p {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--text);
}
.btn-copy-all {
  width: 100%;
  margin-top: 1rem;
  padding: 0.65rem;
  border: 1px dashed var(--brown);
  border-radius: 10px;
  background: transparent;
  color: var(--brown-dark);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.detail-root { display: flex; flex-direction: column; gap: 0; }
.detail-scroll { display: flex; flex-direction: column; gap: 0; }

.actions-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
.btn.secondary {
  border: 1px solid var(--brown);
  border-radius: 999px;
  padding: 0.55rem;
  background: transparent;
  color: var(--brown-dark);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.record-list { list-style: none; margin: 0; padding: 0; }
.record-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}
.record-list li.muted { color: var(--muted); justify-content: center; border: none; }
.record-list button {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  padding: 0.2rem 0.5rem;
  font-size: 0.72rem;
  cursor: pointer;
  font-family: inherit;
  color: var(--muted);
}