:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-soft: #f9fafb;
  --text: #18212f;
  --muted: #647084;
  --line: #d8dee8;
  --accent: #126b5b;
  --accent-dark: #0b4d41;
  --accent-soft: #e7f2ef;
  --danger: #b42318;
  --shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.shell {
  width: min(1040px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.page-head {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 1.9rem;
  line-height: 1.25;
}

h2 {
  margin-bottom: 0.35rem;
  font-size: 1.15rem;
}

.panel,
.result-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.search-panel {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
}

.search-panel p,
.status,
.area,
.empty {
  color: var(--muted);
}

.search-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.85rem;
  align-items: end;
}

.field {
  display: grid;
  gap: 0.4rem;
}

.field span {
  font-size: 0.92rem;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-height: 44px;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-size: 1rem;
}

.field input:focus {
  outline: 3px solid var(--accent-soft);
  border-color: var(--accent);
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  padding: 0 1.15rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.primary {
  background: var(--accent);
  color: #fff;
}

.primary:hover {
  background: var(--accent-dark);
}

.status {
  min-height: 1.4rem;
  margin-bottom: 0;
}

.status.error {
  color: var(--danger);
}

.results {
  margin-top: 1.25rem;
}

.results-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.results-head h2 {
  margin-bottom: 0;
}

#result-count {
  color: var(--muted);
  font-weight: 700;
}

.results-list {
  display: grid;
  gap: 0.85rem;
}

.result-item {
  padding: 1rem;
}

.result-title-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.result-item h3 {
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
  line-height: 1.4;
}

.area {
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
}

.issues-list {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.55rem;
}

.issues-list li {
  line-height: 1.65;
}

.empty {
  padding: 1rem;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 1rem, 1040px);
    padding: 1rem 0 2rem;
  }

  .search-form {
    grid-template-columns: 1fr;
  }

  button {
    width: 100%;
  }
}