:root {
  --bg: #1e1e1e;
  --bg2: #252526;
  --side: #2d2d30;
  --side-border: #3c3c3c;
  --text: #e6e6e6;
  --muted: #9aa0a6;
  --accent: #4ea1ff;
  --intel: #0071c5;
  --amd: #ed1c24;
  --row-hover: #2a2d2e;
  --chip: #33363a;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg); color: var(--text); font-size: 13px;
}
.topbar {
  display: flex; align-items: center; gap: 18px; padding: 14px 20px;
  background: linear-gradient(90deg, #1b1b1c, #232324); border-bottom: 1px solid var(--side-border);
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo {
  width: 42px; height: 42px; border-radius: 9px; object-fit: cover;
  display: block; background: #2d2d30;
}
.brand-text h1 { margin: 0; font-size: 17px; }
.brand-text p { margin: 2px 0 0; font-size: 11px; color: var(--muted); }
.search-wrap { flex: 1; max-width: 640px; }
#search {
  width: 100%; padding: 10px 14px; border-radius: 8px; border: 1px solid var(--side-border);
  background: var(--bg2); color: var(--text); font-size: 13px; outline: none;
}
#search:focus { border-color: var(--accent); }

.filters {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; padding: 12px 20px;
  background: var(--bg2); border-bottom: 1px solid var(--side-border);
}
.fgroup { display: flex; flex-direction: column; gap: 4px; }
.fgroup label { font-size: 11px; color: var(--muted); }
.fgroup select, .fgroup.range select {
  padding: 6px 10px; border-radius: 6px; border: 1px solid var(--side-border);
  background: var(--bg); color: var(--text); font-size: 12px; min-width: 96px;
}
.reset {
  padding: 7px 14px; border-radius: 6px; border: 1px solid var(--side-border);
  background: var(--side); color: var(--text); cursor: pointer; font-size: 12px;
}
.reset:hover { border-color: var(--accent); }
.count { margin-left: auto; color: var(--muted); font-size: 12px; align-self: center; }

main { padding: 0 20px 90px; overflow-x: auto; }
#tbl { width: 100%; border-collapse: collapse; margin-top: 12px; min-width: 860px; }
#tbl th, #tbl td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--side-border); white-space: nowrap; }
#tbl th { position: sticky; top: 0; background: var(--bg2); color: var(--muted); font-weight: 600; font-size: 12px; z-index: 2; }
#tbl th.num, #tbl td.num { text-align: right; font-variant-numeric: tabular-nums; }
#tbl th.sortable { cursor: pointer; user-select: none; }
#tbl th.sortable:hover { color: var(--text); }
#tbl th.sort-asc::after { content: " ▲"; }
#tbl th.sort-desc::after { content: " ▼"; }
#tbl tbody tr { cursor: pointer; }
#tbl tbody tr:hover { background: var(--row-hover); }
.brandtag { font-weight: 700; font-size: 12px; padding: 2px 8px; border-radius: 4px; color: #fff; }
.brandtag.Intel { background: var(--intel); }
.brandtag.AMD { background: var(--amd); }
.seg { color: var(--muted); font-size: 12px; }
.model { font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
.family-logo { width: 22px; height: 22px; object-fit: contain; border-radius: 4px; background: rgba(255,255,255,.08); padding: 2px; }
.cmp-col { text-align: center; }

.perf-bar { display: inline-flex; align-items: center; gap: 6px; justify-content: flex-end; }
.perf-track { width: 60px; height: 7px; border-radius: 4px; background: var(--chip); overflow: hidden; }
.perf-fill { height: 100%; background: linear-gradient(90deg, #4ea1ff, #7dd3fc); }
.perf-fill.high { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.perf-num { width: 30px; text-align: right; font-variant-numeric: tabular-nums; }

.cmp-check { transform: scale(1.2); cursor: pointer; }

.empty { padding: 40px; text-align: center; color: var(--muted); }

/* 详情弹窗 */
.overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5); display: none; z-index: 1000;
  align-items: flex-start; justify-content: center; padding: 40px 16px; overflow: auto;
}
.overlay.show { display: flex; }
.detail-card {
  width: 560px; max-width: 96vw; background: var(--bg); border: 1px solid var(--side-border);
  border-radius: 10px; box-shadow: 0 14px 50px rgba(0,0,0,.5); padding: 0; overflow: hidden;
}
.detail-head { display: flex; align-items: center; gap: 14px; padding: 18px 20px; background: var(--bg2); border-bottom: 1px solid var(--side-border); }
.detail-logo { width: 64px; height: 64px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.detail-logo img { max-width: 100%; max-height: 100%; }
.detail-logo .fallback { font-weight: 800; font-size: 18px; padding: 8px 12px; border-radius: 8px; color: #fff; }
.detail-name { font-size: 19px; font-weight: 700; }
.detail-sub { color: var(--muted); font-size: 12px; margin-top: 3px; }
.detail-close { margin-left: auto; background: none; border: none; color: var(--muted); font-size: 22px; cursor: pointer; }
.detail-close:hover { color: var(--text); }
.detail-body { padding: 10px 20px 20px; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 18px; }
.spec-row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--side-border); }
.spec-row .k { color: var(--muted); }
.spec-row .v { font-weight: 600; }
.detail-note { margin-top: 12px; padding: 10px 12px; background: var(--side); border-radius: 6px; color: var(--muted); font-size: 12px; }
.detail-perf { margin-top: 14px; }
.detail-perf h4 { margin: 0 0 8px; font-size: 13px; }
.bigbar { height: 12px; border-radius: 6px; background: var(--chip); overflow: hidden; margin: 6px 0 12px; }
.bigbar > div { height: 100%; }

/* 对比栏 + 对比弹窗 */
.compare-bar {
  position: fixed; left: 0; right: 0; bottom: 0; background: var(--bg2); border-top: 1px solid var(--side-border);
  display: flex; align-items: center; gap: 12px; padding: 10px 20px; z-index: 900;
}
.cb-title { font-weight: 600; }
.cb-chips { display: flex; gap: 8px; flex: 1; flex-wrap: wrap; }
.cb-chip { background: var(--chip); border: 1px solid var(--side-border); border-radius: 14px; padding: 4px 10px; font-size: 12px; display: flex; align-items: center; gap: 6px; }
.cb-chip button { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 14px; }
.cb-chip button:hover { color: var(--amd); }
.cb-open { background: var(--accent); color: #fff; border: none; padding: 7px 16px; border-radius: 6px; cursor: pointer; }
.cb-clear { background: none; border: 1px solid var(--side-border); color: var(--muted); padding: 7px 14px; border-radius: 6px; cursor: pointer; }

.compare-card { width: 96vw; max-width: 1100px; background: var(--bg); border: 1px solid var(--side-border); border-radius: 10px; padding: 0; overflow: hidden; }
.compare-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; background: var(--bg2); border-bottom: 1px solid var(--side-border); }
.compare-head h3 { margin: 0; font-size: 15px; }
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 9px 12px; border-bottom: 1px solid var(--side-border); text-align: right; white-space: nowrap; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; color: var(--muted); }
.compare-table .chead { font-size: 13px; font-weight: 700; }
.compare-table .chead .brandtag { margin-left: 6px; }
.win { color: #fbbf24; font-weight: 700; }

.foot { padding: 14px 20px; color: var(--muted); font-size: 11px; border-top: 1px solid var(--side-border); }
.foot b { color: #fbbf24; }

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; }
  .search-wrap { max-width: 100%; order: 3; flex-basis: 100%; }
  .spec-grid { grid-template-columns: 1fr; }
}