:root {
  --ink: #1f2933;
  --muted: #667085;
  --line: #d9e1e8;
  --panel: #fff;
  --band: #f5f7f8;
  --accent: #0f8b8d;
  --danger: #b42318;
  --warn: #b7791f;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--ink); background: var(--band); }
button, input, select, textarea { font: inherit; }
button, a { cursor: pointer; }
a { color: var(--accent); text-decoration: none; }

.hidden { display: none !important; }
.login-view { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: min(430px, 100%);
  display: grid;
  gap: 14px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(31, 41, 51, 0.12);
}
.login-card img { width: 240px; max-width: 100%; }
h1, p { margin: 0; }
.login-card p, label, td { color: var(--muted); }
label { display: grid; gap: 7px; font-size: 13px; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  color: var(--ink);
  background: #fff;
}
button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
}
#loginButton {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}
#loginError { min-height: 20px; color: var(--danger); font-weight: 700; }

.dashboard-view { padding: 24px; }
.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand img { width: clamp(150px, 20vw, 260px); }
.brand p { color: var(--muted); margin-top: 6px; }
.top-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.top-actions a, .top-actions button { padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(130px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.stats-grid article {
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.stats-grid strong { display: block; font-size: 28px; }
.stats-grid span { color: var(--muted); }

.settings-panel {
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.settings-panel h2 { margin: 0 0 6px; font-size: 18px; }
.settings-panel p, #settingsResult { color: var(--muted); }
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 12px;
}
.setting-item {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.setting-item .check-row { display: flex; align-items: center; gap: 8px; color: var(--ink); }
.setting-item .check-row input { width: auto; }
#saveSettingsButton { width: 150px; background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }

.payment-settings {
  display: grid;
  gap: 12px;
}

.payment-config {
  display: grid;
  grid-template-columns: 110px minmax(160px, 220px) minmax(260px, 1fr) minmax(260px, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.qr-preview {
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  overflow: hidden;
}

.qr-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.payment-config textarea {
  min-height: 78px;
}

#savePaymentButton {
  width: 150px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}

#paymentResult {
  color: var(--muted);
}

.gallery-settings {
  display: grid;
  gap: 12px;
}
.gallery-item {
  display: grid;
  grid-template-columns: 150px repeat(4, minmax(160px, 1fr)) auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.gallery-upload {
  padding: 7px;
  font-size: 12px;
}
.gallery-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.gallery-actions button {
  padding: 10px 12px;
}
#saveGalleryButton {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}
#galleryResult { color: var(--muted); }

.sticker-settings {
  display: grid;
  gap: 12px;
}

.sticker-item {
  display: grid;
  grid-template-columns: 78px 170px minmax(240px, 1fr) auto auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.sticker-thumb {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
}

.sticker-thumb img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.sticker-upload {
  padding: 7px;
  font-size: 12px;
}

.empty-sticker {
  color: var(--muted);
}

.filters {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 14px;
  margin-bottom: 16px;
}
.segmented { display: flex; gap: 8px; flex-wrap: wrap; }
.segmented button.active { background: #e7f6f6; border-color: var(--accent); color: var(--accent); font-weight: 700; }

.orders-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: auto;
}
table { width: 100%; border-collapse: collapse; min-width: 1120px; }
th, td { padding: 12px; border-bottom: 1px solid #edf1f4; text-align: left; vertical-align: top; }
th { color: var(--ink); font-size: 13px; background: #fafafa; }
td strong { color: var(--ink); display: block; }
.status-badge { display: inline-flex; padding: 5px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.status-pending { color: var(--warn); background: #fff7e6; }
.status-making { color: var(--accent); background: #e7f6f6; }
.status-done { color: #2f855a; background: #e8f5ee; }
.status-shipped { color: #475467; background: #eef1f4; }
.row-actions { display: grid; gap: 8px; min-width: 150px; }
.row-actions button { min-height: 34px; }
.note-input { min-width: 180px; min-height: 70px; resize: vertical; }
.empty-state { padding: 30px; text-align: center; color: var(--muted); }

@media (max-width: 900px) {
  .admin-topbar, .brand { align-items: flex-start; flex-direction: column; }
  .filters, .stats-grid, .settings-grid, .gallery-item, .sticker-item, .payment-config { grid-template-columns: 1fr; }
}