:root {
  --bg: #0a0c10;
  --bg-elev: #12151c;
  --bg-card: #161a24;
  --bg-soft: #1c2230;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f3f0ea;
  --muted: #9aa3b5;
  --faint: #6b7385;
  --accent: #f0a05a;
  --accent-2: #6ec8b8;
  --danger: #ef6b6b;
  --radius: 18px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Figtree", system-ui, sans-serif;

  --taobao: #ff6a3d;
  --jd: #e23d3d;
  --taobao_flash: #ff4d8d;
  --meituan: #c8e86a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body { overflow-x: hidden; }

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(240, 160, 90, 0.22), transparent 60%),
    radial-gradient(700px 480px at 90% 8%, rgba(110, 200, 184, 0.16), transparent 55%),
    radial-gradient(600px 400px at 50% 100%, rgba(255, 77, 141, 0.08), transparent 50%),
    linear-gradient(180deg, #0a0c10 0%, #0d1016 100%);
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  opacity: 0.035;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.topbar, .main {
  position: relative;
  z-index: 2;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: flex-end;
  justify-content: space-between;
  padding: 28px 36px 12px;
  animation: fadeDown 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.brand { display: flex; gap: 14px; align-items: center; }

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background:
    conic-gradient(from 210deg, var(--accent), var(--accent-2), var(--taobao_flash), var(--accent));
  box-shadow: 0 0 0 4px rgba(240, 160, 90, 0.12), 0 12px 30px rgba(240, 160, 90, 0.25);
  animation: spinSlow 18s linear infinite;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 4px;
}

.range-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  background: rgba(22, 26, 36, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 12px 14px;
}

.range-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.range-field input {
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.range-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(240, 160, 90, 0.2);
}

.range-sep { color: var(--faint); padding-bottom: 10px; }

.range-presets { display: flex; gap: 6px; }

.chip, .btn-primary, .btn-ghost {
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  transition: transform 0.15s ease, background 0.2s, box-shadow 0.2s, color 0.2s;
}

.chip {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.82rem;
}

.chip:hover, .chip.active {
  color: var(--text);
  border-color: rgba(240, 160, 90, 0.45);
  background: rgba(240, 160, 90, 0.12);
}

.btn-primary {
  background: linear-gradient(135deg, #f0a05a, #e8843a);
  color: #1a1008;
  border-radius: 12px;
  padding: 10px 18px;
  box-shadow: 0 8px 24px rgba(240, 160, 90, 0.28);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(240, 160, 90, 0.38); }
.btn-primary:active { transform: translateY(0); }

.main { padding: 8px 36px 48px; }

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 18px 0 22px;
}

.summary-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(28, 34, 48, 0.95), rgba(18, 21, 28, 0.9));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(16px);
  animation: riseIn 0.65s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.summary-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--plat-color, var(--accent));
}

.summary-card .label {
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary-card .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--plat-color);
  box-shadow: 0 0 12px var(--plat-color);
}

.summary-card .value {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.summary-card .hint {
  margin-top: 6px;
  color: var(--faint);
  font-size: 0.78rem;
}

.platform-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tab {
  position: relative;
  background: rgba(22, 26, 36, 0.7);
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
  padding: 10px 18px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.25s ease;
}

.tab:hover { color: var(--text); border-color: var(--line-strong); }

.tab.active {
  color: #140e08;
  background: var(--plat-color, var(--accent));
  border-color: transparent;
  box-shadow: 0 8px 22px color-mix(in srgb, var(--plat-color) 40%, transparent);
}

.panel {
  background: rgba(18, 21, 28, 0.82);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 22px;
  backdrop-filter: blur(10px);
  min-height: 420px;
  animation: fadeUp 0.55s ease both;
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.view-switch {
  display: inline-flex;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px;
  gap: 2px;
}

.view-switch button {
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 9px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.view-switch button.active {
  background: var(--bg-card);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.metric {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  opacity: 0;
  transform: scale(0.96);
  animation: popIn 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.metric .m-label { color: var(--muted); font-size: 0.8rem; margin-bottom: 6px; }
.metric .m-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.chart-wrap {
  position: relative;
  height: 320px;
  margin-bottom: 8px;
  background: linear-gradient(180deg, rgba(28, 34, 48, 0.35), transparent);
  border-radius: 16px;
  padding: 12px;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 14px;
  border: 1px solid var(--line);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: right;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.data-table th:first-child,
.data-table td:first-child { text-align: left; }

.data-table thead th {
  background: var(--bg-soft);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: sticky;
  top: 0;
}

.data-table tbody tr {
  transition: background 0.2s;
  animation: rowIn 0.4s ease both;
}

.data-table tbody tr:hover { background: rgba(240, 160, 90, 0.06); }
.data-table tfoot td {
  background: rgba(240, 160, 90, 0.08);
  font-weight: 700;
  color: var(--accent);
  border-bottom: none;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  color: var(--muted);
  text-align: center;
  gap: 16px;
}

.empty-orb {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--taobao_flash), var(--accent));
  filter: blur(0.2px);
  animation: pulse 2.4s ease-in-out infinite;
}

.empty-state code {
  background: var(--bg-soft);
  padding: 2px 8px;
  border-radius: 6px;
  color: var(--accent);
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1f2430;
  border: 1px solid var(--line-strong);
  color: var(--text);
  padding: 12px 18px;
  border-radius: 12px;
  z-index: 50;
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-18px); }
  to { opacity: 1; transform: none; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@keyframes riseIn {
  to { opacity: 1; transform: none; }
}
@keyframes popIn {
  to { opacity: 1; transform: none; }
}
@keyframes rowIn {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: none; }
}
@keyframes spinSlow { to { transform: rotate(360deg); } }
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.85; }
  50% { transform: scale(1.08); opacity: 1; }
}

@media (max-width: 980px) {
  .summary-strip { grid-template-columns: repeat(2, 1fr); }
  .topbar, .main { padding-left: 18px; padding-right: 18px; }
}

@media (max-width: 560px) {
  .summary-strip { grid-template-columns: 1fr; }
  .brand-title { font-size: 1.25rem; }
  .chart-wrap { height: 260px; }
}