:root {
  --bg: #f5f7f4;
  --surface: #ffffff;
  --surface-2: #f0f4f7;
  --ink: #16201a;
  --muted: #5e6a64;
  --line: #d8dfd7;
  --green: #18734a;
  --green-soft: #dcefe5;
  --blue: #285a8d;
  --amber: #9b6400;
  --amber-soft: #fff1cf;
  --red: #a93628;
  --red-soft: #fde5df;
  --shadow: 0 18px 48px rgba(22, 32, 26, .08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.5;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 247, 244, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.topbar-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  padding: 56px 0 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr);
  gap: 28px;
  align-items: stretch;
}

.hero-copy {
  padding: 42px 0 26px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: 60px;
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 22px;
  line-height: 1.2;
}

h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.primary,
.secondary {
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 700;
}

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

.secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
}

.secondary:hover,
.primary:hover {
  transform: translateY(-1px);
}

.small {
  min-height: 34px;
  padding: 0 12px;
  font-size: 13px;
}

.report-status,
.panel,
.upload-panel,
.kpi,
.control-band {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.report-status {
  padding: 18px;
  display: grid;
  align-content: center;
  gap: 12px;
}

.status-line {
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-2);
}

.status-line span,
.status-line strong {
  display: block;
}

.status-line span {
  color: var(--muted);
  font-size: 12px;
}

.status-line strong {
  margin-top: 4px;
  overflow-wrap: anywhere;
}

.control-band {
  margin-top: 16px;
  padding: 16px;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) repeat(3, minmax(110px, 140px)) auto auto;
  gap: 14px;
  align-items: end;
}

.control-group label,
.form-grid label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="search"] {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #fff;
  color: var(--ink);
}

.toggle {
  height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.upload-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.upload-panel {
  padding: 18px;
  box-shadow: none;
}

.upload-panel p {
  color: var(--muted);
  font-size: 14px;
}

.upload-panel input {
  width: 100%;
}

.muted {
  background: var(--surface-2);
}

.kpi-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.kpi {
  padding: 18px;
  box-shadow: none;
}

.kpi span,
.kpi small {
  display: block;
  color: var(--muted);
}

.kpi strong {
  display: block;
  margin: 6px 0;
  font-size: 36px;
  line-height: 1;
}

.split,
.notify-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
  gap: 20px;
}

.panel {
  margin-top: 20px;
  padding: 20px;
}

.split .panel,
.notify-grid .panel {
  margin-top: 0;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  padding: 0 10px;
  font-size: 12px;
  font-weight: 800;
}

.alert-list {
  display: grid;
  gap: 10px;
}

.alert-item {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  border-radius: 8px;
  background: #fff;
}

.alert-item.critical {
  border-left-color: var(--red);
  background: var(--red-soft);
}

.alert-item.watch {
  border-left-color: var(--amber);
  background: var(--amber-soft);
}

.alert-item.down {
  border-left-color: var(--blue);
}

.alert-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 800;
}

.alert-title small {
  white-space: nowrap;
  color: var(--muted);
  font-weight: 700;
}

.alert-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

textarea {
  width: 100%;
  min-height: 290px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  resize: vertical;
  background: #fbfcfb;
  color: var(--ink);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.dot {
  width: 9px;
  height: 9px;
  display: inline-block;
  border-radius: 50%;
  margin-right: 5px;
}

.dot.up {
  background: var(--green);
}

.dot.down {
  background: var(--blue);
}

.dot.new {
  background: var(--amber);
}

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

.trend-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
}

.trend-card strong {
  display: block;
  overflow-wrap: anywhere;
}

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

.spark {
  width: 100%;
  height: 46px;
  margin-top: 10px;
}

.table-search {
  max-width: 280px;
}

.table-wrap {
  width: 100%;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 860px;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

td {
  font-size: 14px;
}

.rank-up {
  color: var(--green);
  font-weight: 800;
}

.rank-down {
  color: var(--blue);
  font-weight: 800;
}

.rank-new {
  color: var(--amber);
  font-weight: 800;
}

.asin-list {
  display: grid;
  gap: 4px;
}

.asin-list span {
  white-space: nowrap;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.roadmap div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.roadmap p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.footer {
  padding: 26px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .notify-grid,
  .upload-grid,
  .roadmap {
    grid-template-columns: 1fr;
  }

  .control-band,
  .kpi-grid,
  .trend-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav {
    display: none;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(100% - 22px, 1180px);
  }

  .hero {
    padding-top: 28px;
  }

  .hero-copy {
    padding-top: 12px;
  }

  h1 {
    font-size: 38px;
  }

  .lead {
    font-size: 16px;
  }

  .control-band,
  .kpi-grid,
  .trend-board {
    grid-template-columns: 1fr;
  }

  .panel-head {
    display: grid;
  }

  .table-search {
    max-width: none;
  }

  .footer {
    display: grid;
  }
}