* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
  background: #FAFAF7;
  color: #2b2b2b;
}

.hero {
  text-align: center;
  padding: 56px 20px 32px;
}

.hero h1 {
  margin: 0 0 12px;
  font-family: "ZCOOL KuaiLe", "Noto Sans SC", cursive;
  font-size: 26px;
  line-height: 1.5;
}

.hero p {
  margin: 0;
  color: #666;
  font-size: 15px;
}

main {
  max-width: 560px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.gallery-card {
  border: 3px solid transparent;
  border-radius: 18px;
  padding: 20px 16px;
  min-height: 110px;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: #2b2b2b;
}

.gallery-card strong { font-size: 16px; }
.gallery-card span { font-size: 12px; color: rgba(43,43,43,0.75); }

.gallery-card.selected {
  border-color: #2b2b2b;
}

.hidden { display: none !important; }

.form, .result {
  background: #fff;
  border-radius: 20px;
  padding: 28px 24px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.06);
}

.form h2, .result h2 { margin-top: 0; }

.form label {
  display: block;
  margin-bottom: 16px;
  font-size: 14px;
  color: #444;
}

.form input[type="text"],
.form textarea,
.form input[type="file"] {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid #ddd;
  border-radius: 10px;
  font-family: inherit;
}

.form textarea { resize: vertical; }

button {
  font-family: inherit;
  cursor: pointer;
}

#submit-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  border: none;
  border-radius: 999px;
  background: #2b2b2b;
  color: #fff;
  margin-top: 8px;
}

#submit-btn:disabled { opacity: 0.6; }

.secondary {
  padding: 8px 16px;
  font-size: 13px;
  border: 1px solid #ccc;
  border-radius: 999px;
  background: #fff;
  margin-bottom: 20px;
}

.error {
  color: #d64545;
  font-size: 14px;
  margin-top: 12px;
}

.link-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.link-row input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #ddd;
  font-size: 13px;
}

.link-row button {
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  background: #eee;
}

.hint {
  font-size: 13px;
  color: #888;
}

.result a {
  display: inline-block;
  margin-top: 8px;
  color: #2b2b2b;
  font-weight: 600;
}

.chapter-editor {
  margin: -6px 0 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chapter-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.chapter-thumb {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}

.chapter-caption {
  flex: 1;
  padding: 8px 10px;
  font-size: 14px;
  border: 1px solid #ddd;
  border-radius: 10px;
  font-family: inherit;
  resize: vertical;
}