:root {
  --bg: #eef3f7;
  --card: #ffffff;
  --ink: #1a2b3c;
  --muted: #5a6b7c;
  --primary: #1a4a6e;
  --primary-press: #123652;
  --accent: #c45c26;
  --danger: #b33b3b;
  --line: #d0dbe6;
  --radius: 14px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, #d7e6f2 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #f3e6dc 0%, transparent 50%),
    var(--bg);
  color: var(--ink);
  font-size: 20px;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  padding: 12px 12px 40px;
}

#app {
  max-width: 720px;
  margin: 0 auto;
}

.hidden {
  display: none !important;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.topbar h1 {
  margin: 0;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.sub {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.spacer {
  width: 64px;
}

.search-wrap {
  margin-bottom: 14px;
}

.search-input {
  width: 100%;
  font-size: 1.25rem;
  padding: 16px 18px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  outline: none;
}

.search-input:focus {
  border-color: var(--primary);
}

.action-bar {
  margin-bottom: 10px;
}

.btn {
  appearance: none;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 14px 18px;
  cursor: pointer;
  line-height: 1.2;
}

.btn-block {
  width: 100%;
  margin-top: 10px;
}

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

.btn-primary:active {
  background: var(--primary-press);
}

.btn-secondary {
  background: #e7eef5;
  color: var(--primary);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--line);
  padding: 10px 14px;
  font-size: 1rem;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-sm {
  padding: 10px 14px;
  font-size: 1rem;
}

.btn-download {
  width: 100%;
  background: var(--accent);
  color: #fff;
  font-size: 1.35rem;
  padding: 18px 16px;
  box-shadow: 0 8px 20px rgba(196, 92, 38, 0.28);
}

.btn-edit {
  flex-shrink: 0;
  min-width: 96px;
}

.download-hint {
  background: #fff7e8;
  border: 2px solid #f0d2a0;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 0 0 14px;
  font-size: 1.05rem;
}

.download-hint .filename {
  color: var(--accent);
  word-break: break-all;
  font-weight: 800;
}

.well-list, .record-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.well-item, .record-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px 16px;
  border: 1px solid var(--line);
}

.well-name {
  font-size: 1.45rem;
  font-weight: 800;
}

.well-sub, .rec-meta, .muted, .note {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 4px 0 0;
}

.rec-hours {
  font-size: 1.25rem;
  font-weight: 800;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.card label {
  display: block;
  margin: 12px 0 6px;
  font-weight: 700;
}

.card input[type="number"],
.card input[type="text"],
.card input[type="date"],
.card input[type="search"] {
  width: 100%;
  font-size: 1.15rem;
  padding: 12px 14px;
  border: 2px solid var(--line);
  border-radius: 10px;
  font-family: inherit;
}

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

.row input {
  flex: 1;
}

.edit-summary {
  background: var(--card);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
}

.edit-summary p {
  margin: 0;
  font-size: 1.15rem;
}

.edit-summary strong {
  font-size: 1.5rem;
  color: var(--accent);
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 20px;
  background: var(--card);
  border-radius: var(--radius);
}

.seed-block {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.seed-block h3 {
  margin: 0 0 6px;
  font-size: 1.15rem;
}

.file-btn {
  display: block;
  text-align: center;
}

.danger-zone h2 {
  color: var(--danger);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 40, 0.55);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}

.modal-card {
  background: #fff;
  width: min(560px, 100%);
  border-radius: 18px 18px 14px 14px;
  padding: 20px 18px 16px;
  max-height: 85vh;
  overflow: auto;
}

.modal-card h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.modal-body {
  font-size: 1.05rem;
}

.q-item {
  background: #f4f7fa;
  border-radius: 10px;
  padding: 10px 12px;
  margin: 8px 0;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.select-label {
  display: block;
  margin: 12px 0 8px;
  font-weight: 800;
  font-size: 1.1rem;
}

.month-select {
  width: 100%;
  font-size: 1.25rem;
  font-family: inherit;
  font-weight: 700;
  padding: 14px 16px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: #fff;
  margin-bottom: 8px;
}

.month-big {
  margin: 0 0 8px;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
}

.jiankai-explain h2 {
  margin: 0 0 10px;
  font-size: 1.25rem;
  color: var(--primary);
}

.jiankai-explain p {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.jiankai-plan {
  background: #f4f7fa;
  border-radius: 10px;
  padding: 12px 14px;
  font-weight: 700;
  color: var(--ink);
}

@media (min-width: 700px) {
  body {
    font-size: 21px;
    padding: 24px;
  }

  .modal {
    align-items: center;
  }

  .modal-card {
    border-radius: 18px;
  }
}