:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #202124;
  --muted: #6c717a;
  --line: #dfe3e8;
  --accent: #157a6e;
  --accent-strong: #0f5f55;
  --warn: #9b4d12;
  --shadow: 0 14px 34px rgba(30, 36, 45, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

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

.auth-panel {
  width: min(520px, 100%);
  margin: 8vh auto 0;
  padding: 28px;
}

.workspace {
  display: grid;
  gap: 18px;
}

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

.eyebrow,
.label {
  margin: 0 0 6px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 32px;
  line-height: 1.2;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
  margin-bottom: 14px;
}

.muted {
  color: var(--muted);
  line-height: 1.65;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 22px 0;
}

.tab,
button {
  height: 42px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.tab {
  background: #eef7f5;
  color: var(--accent-strong);
}

.tab.active,
button:hover {
  background: var(--accent-strong);
  color: #fff;
}

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

.form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

input,
select {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

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

.card {
  padding: 20px;
}

.card strong {
  display: block;
  font-size: 24px;
}

.panel {
  padding: 22px;
}

.inline-form,
.copy-row {
  display: grid;
  grid-template-columns: 1fr 150px;
  gap: 10px;
}

.inline-form select {
  min-width: 130px;
}

#orderForm {
  grid-template-columns: 160px 1fr 150px;
}

.table {
  display: grid;
  gap: 8px;
}

.row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1.4fr;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: min(420px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: 8px;
  background: #202124;
  color: #fff;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: 160ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.hidden {
  display: none !important;
}

@media (max-width: 760px) {
  .shell {
    width: min(100vw - 20px, 1120px);
    padding: 18px 0;
  }

  .auth-panel {
    margin-top: 0;
    padding: 20px;
  }

  h1 {
    font-size: 26px;
  }

  .grid,
  .inline-form,
  .copy-row,
  #orderForm,
  .row {
    grid-template-columns: 1fr;
  }
}