:root {
  --navy: #0b2a4a;
  --navy-light: #13456f;
  --accent: #e2342d;
  --bg: #f4f6f9;
  --card: #ffffff;
  --border: #dce3ea;
  --text: #1c2a3a;
  --muted: #6b7a8d;
  --oil: #c8841f;
  --oilxl: #a85d12;
  --air: #2e7d4f;
  --cabin: #2f6db0;
}

* { box-sizing: border-box; }

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

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--navy);
  color: #fff;
  padding: 14px 28px;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.logo {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 1px;
}
.tagline { color: #aac4dc; font-size: 14px; }

.lang-toggle { display: flex; gap: 4px; }
.lang-btn {
  background: transparent;
  border: 1px solid #3d6d99;
  color: #cfe0ef;
  padding: 5px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
}
.lang-btn.active { background: #fff; color: var(--navy); border-color: #fff; font-weight: 600; }

main { max-width: 1100px; margin: 0 auto; padding: 26px 20px 60px; }

.hidden { display: none !important; }

.mode-tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.mode-tab {
  background: #e7ecf1;
  border: 1px solid var(--border);
  border-bottom: none;
  color: var(--muted);
  padding: 10px 22px;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}
.mode-tab.active { background: var(--card); color: var(--navy); }

.kw-row { display: flex; gap: 12px; }
.kw-input {
  flex: 1;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  color: var(--text);
}
.kw-input:focus { outline: 2px solid var(--navy-light); outline-offset: 0; }

.search-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 26px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.search-panel h1 { font-size: 22px; margin: 0 0 6px; color: var(--navy); }
.hint { margin: 0 0 18px; color: var(--muted); font-size: 14px; }

.filters {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 14px;
  align-items: end;
}
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.field select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fff;
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
}
.field select:disabled { background: #eef1f4; color: #9aa7b4; cursor: not-allowed; }
.field select:focus { outline: 2px solid var(--navy-light); outline-offset: 0; }

.btn-reset {
  padding: 10px 18px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 7px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  height: 42px;
}
.btn-reset:hover { background: #f0f2f5; color: var(--text); }

.results { margin-top: 26px; }
.result-bar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-bottom: 14px; min-height: 24px;
}
.result-meta { font-size: 14px; color: var(--muted); }
.result-meta strong { color: var(--navy); }
.btn-print {
  border: 1px solid var(--border);
  background: var(--navy);
  color: #fff;
  padding: 9px 16px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}
.btn-print:hover { background: var(--navy-light); }

.app-list { margin-top: 6px; }
.app-toggle {
  background: none; border: none; color: var(--navy-light);
  cursor: pointer; font-size: 13px; font-weight: 600; padding: 4px 0;
}
.app-table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.app-table th, .app-table td {
  text-align: left; padding: 5px 12px; font-size: 13px;
  border-bottom: 1px solid #f0f3f6;
}
.app-table th {
  font-size: 10px; text-transform: uppercase; letter-spacing: .4px;
  color: var(--muted); font-weight: 600;
}
.app-wrap { max-height: 320px; overflow-y: auto; border: 1px solid #eef1f4; border-radius: 6px; }
.app-more { font-size: 12px; color: var(--muted); padding: 6px 12px; }

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 5px solid var(--muted);
  border-radius: 9px;
  padding: 16px 20px;
  margin-bottom: 14px;
  box-shadow: 0 1px 2px rgba(0,0,0,.03);
}
.product-card.t-oil { border-left-color: var(--oil); }
.product-card.t-oilxl { border-left-color: var(--oilxl); }
.product-card.t-air { border-left-color: var(--air); }
.product-card.t-cabin { border-left-color: var(--cabin); }

.pc-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-bottom: 14px;
}
.pc-type {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.t-oil .pc-type { background: var(--oil); }
.t-oilxl .pc-type { background: var(--oilxl); }
.t-air .pc-type { background: var(--air); }
.t-cabin .pc-type { background: var(--cabin); }

.pc-fuji { font-size: 20px; font-weight: 800; color: var(--navy); }
.pc-fuji.soon { color: var(--accent); font-size: 16px; font-weight: 700; }
.pc-style { font-size: 13px; color: var(--muted); }
.pc-remark {
  font-size: 12px;
  background: #fff3e0;
  color: #b25e00;
  border: 1px solid #ffd9a8;
  padding: 2px 8px;
  border-radius: 4px;
}

.cross-table { width: 100%; border-collapse: collapse; }
.cross-table th, .cross-table td {
  text-align: left;
  padding: 8px 12px;
  font-size: 14px;
  border-bottom: 1px solid #eef1f4;
}
.cross-table th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--muted);
  font-weight: 600;
}
.cross-table td { font-weight: 600; color: var(--text); }
.cross-table .none { color: #b9c2cd; font-weight: 400; }

.empty-state, .placeholder {
  text-align: center;
  color: var(--muted);
  padding: 50px 20px;
  font-size: 15px;
}
.placeholder .big { font-size: 40px; display: block; margin-bottom: 10px; opacity: .5; }

.site-footer {
  text-align: center;
  padding: 20px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
  background: #fff;
}

@media (max-width: 760px) {
  .filters { grid-template-columns: 1fr 1fr; }
  .btn-reset { grid-column: span 2; }
  .result-bar { flex-direction: column; align-items: flex-start; }
}

@media print {
  .site-header, .mode-tabs, .search-panel, .site-footer,
  .btn-print, .app-toggle { display: none !important; }
  body { background: #fff; }
  main { max-width: 100%; padding: 0; }
  .results { margin-top: 0; }
  .result-meta { font-size: 13px; margin-bottom: 12px; }
  .product-card {
    box-shadow: none;
    border: 1px solid #999;
    break-inside: avoid;
    page-break-inside: avoid;
  }
  .app-wrap { max-height: none !important; overflow: visible !important; border: none; }
  .pc-type { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}