:root {
  --bg: #f4f8ef;
  --ink: #10261a;
  --muted: #5e7365;
  --line: #d6e3d5;
  --panel: #ffffff;
  --accent: #ff8f3a;
  --accent-deep: #e7670f;
  --danger: #d84545;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: linear-gradient(150deg, #eff8e6 0%, #e6f0f8 100%);
  font-family: "Avenir Next", "DIN Alternate", "PingFang SC", "Microsoft YaHei", sans-serif;
  position: relative;
  overflow-x: hidden;
}

.bg-shape {
  position: fixed;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.5;
  pointer-events: none;
}

.bg-a {
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, #ffe7cf, transparent 70%);
  top: -80px;
  right: -80px;
}

.bg-b {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, #d3f4d4, transparent 70%);
  bottom: -120px;
  left: -80px;
}

.shell {
  width: min(980px, 92vw);
  margin: 28px auto 40px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 12px 35px rgba(16, 38, 26, 0.08);
}

.hero {
  padding: 22px 24px;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  letter-spacing: 1.8px;
  font-size: 12px;
}

.hero h1 {
  margin: 6px 0 8px;
  font-size: clamp(30px, 5vw, 42px);
}

.sub {
  margin: 0;
  color: var(--muted);
}

.tabs {
  margin-top: 14px;
  padding: 8px;
  display: flex;
  gap: 8px;
}

.tab {
  flex: 1;
  border: 0;
  background: transparent;
  border-radius: 12px;
  padding: 12px;
  font-size: 16px;
  color: var(--muted);
  cursor: pointer;
}

.tab.is-active {
  background: linear-gradient(120deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-weight: 600;
}

.view {
  margin-top: 14px;
  display: grid;
  gap: 14px;
}

.hidden {
  display: none;
}

.form-panel, .list-panel, .rank-panel, .filter-panel {
  padding: 20px;
}

.form-panel h2, .list-panel h2, .rank-panel h2, .filter-panel h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.query-grid {
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

input,
select {
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 0 12px;
  font-size: 16px;
  background: #fff;
}

.chips {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 0;
  padding: 8px 12px;
  border-radius: 999px;
  background: #e7f4e8;
  color: #20472d;
  cursor: pointer;
}

.actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-weight: 600;
}

.btn.ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: #355242;
}

.btn.danger {
  padding: 6px 12px;
  background: linear-gradient(120deg, #ef7f7f, var(--danger));
  color: #fff;
}

.summary-panel {
  padding: 14px 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  background: #f9fcf6;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}

.metric span {
  display: block;
  font-size: 34px;
  font-weight: 700;
}

.metric small {
  color: var(--muted);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-head small {
  color: var(--muted);
}

.record-list, .rank-list, .query-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: grid;
  gap: 10px;
}

.record-item,
.rank-item,
.query-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: #fbfef9;
}

.record-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.record-item h4,
.query-item strong {
  margin: 0;
  font-size: 18px;
}

.record-item p,
.query-item span {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  display: block;
}

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

.record-right strong {
  font-size: 18px;
}

.stats-grid {
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.stats-grid article {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: #fafdf8;
}

.stats-grid h3 {
  margin: 0;
  font-size: 34px;
}

.stats-grid p {
  margin: 6px 0 0;
  color: var(--muted);
}

.rank-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.rank-row span {
  color: var(--muted);
  font-size: 13px;
}

.track {
  height: 10px;
  background: #e7efe7;
  border-radius: 999px;
  overflow: hidden;
}

.fill {
  height: 100%;
  width: 10%;
  border-radius: 999px;
  background: linear-gradient(120deg, #ffbd69, var(--accent));
}

.empty-tip {
  color: var(--muted);
  margin: 12px 0 0;
}

.reveal {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(12px);
    animation: rise 460ms ease forwards;
  }

  .delay-1 { animation-delay: 120ms; }
  .delay-2 { animation-delay: 220ms; }
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .summary-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .form-grid,
  .stats-grid,
  .summary-panel,
  .filter-grid {
    grid-template-columns: 1fr;
  }

  .query-grid .btn {
    width: 100%;
  }

  .actions {
    flex-direction: column;
  }

  .record-right {
    flex-direction: column;
    align-items: flex-end;
  }
}