:root {
  --bg: #f4f7fc;
  --card: #ffffff;
  --line: #d8e1f0;
  --text: #1f2937;
  --muted: #64748b;
  --brand: #1f7ae0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  padding: 20px;
}

.container {
  max-width: 980px;
  margin: 0 auto;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.top-nav-link {
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 700;
  color: #38506f;
  background: #fff;
}

.top-nav-link.active {
  color: #0f4e9b;
  border-color: #cfe4ff;
  background: #eaf3ff;
}

h1 {
  margin: 0 0 8px;
}

.desc {
  color: var(--muted);
  margin: 0 0 16px;
}

.parse-block {
  margin: 0 0 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
}

.parse-block h2 {
  margin: 0 0 8px;
  font-size: 14px;
}

.parse-actions {
  margin-top: 8px;
}

.form-grid {
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
}

label span {
  font-weight: 700;
  font-size: 13px;
}

.input-with-link {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.input-with-link input {
  flex: 1 1 320px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  padding: 10px 12px;
  outline: none;
  background: #fff;
}

input:focus,
textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(31, 122, 224, 0.12);
}

.actions {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 10px;
  height: 40px;
  padding: 0 14px;
  background: linear-gradient(120deg, #2f8fff, #1f7ae0);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button.ghost {
  background: #fff;
  color: #274866;
  border: 1px solid var(--line);
}

.meta {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.output-block {
  margin-top: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
}

.output-block h2 {
  margin: 0 0 8px;
  font-size: 14px;
}

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

.jump-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(120deg, #1d4ed8, #2563eb);
}

.field-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  color: #0f4e9b;
  background: #eaf3ff;
  border: 1px solid #cfe4ff;
  white-space: nowrap;
}

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