:root {
  --ink: #1f2430;
  --ink-2: #5b6472;
  --line: #e6e9ef;
  --card: #ffffff;
  --bg: #f5f7fa;
  --accent: #2f6bff;
  --accent-soft: #eaf1ff;
  --good: #16a34a;
  --warn: #d97706;
  --star: #f59e0b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  line-height: 1.6;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
}

/* header */
.site-header {
  background: linear-gradient(135deg, #1f2430 0%, #2f3b56 100%);
  color: #fff;
  padding: 34px 0 30px;
}
.header-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand h1 {
  margin: 0;
  font-size: 30px;
  letter-spacing: 1px;
}
.subtitle {
  margin: 6px 0 0;
  color: #c7d0e0;
  font-size: 14px;
}
.meta { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
}
.badge-updated { background: rgba(47,107,255,.35); }

/* toolbar */
.toolbar {
  margin: 20px 0 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
#search {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink);
  outline: none;
}
#search:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13.5px;
  cursor: pointer;
  transition: all .15s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* stats */
.stats {
  color: var(--ink-2);
  font-size: 13px;
  margin-bottom: 6px;
}

/* cards */
.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  padding-bottom: 30px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow .15s, transform .15s;
}
.card:hover {
  box-shadow: 0 10px 30px rgba(31,36,48,.10);
  transform: translateY(-2px);
}
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.tag {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.date { font-size: 12px; color: var(--ink-2); }
.card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
}
.card .summary {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  flex: 1;
}
.reason {
  background: #fbfcfe;
  border-left: 3px solid var(--accent);
  padding: 8px 12px;
  border-radius: 0 8px 8px 0;
  font-size: 13.5px;
  color: #2b3445;
}
.reason strong { color: var(--accent); }

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
  flex-wrap: wrap;
}
.stars { color: var(--star); font-size: 14px; letter-spacing: 1px; }
.stars .dim { color: #d8dde6; }
.price { font-size: 13px; color: var(--ink-2); }
.price b { color: var(--ink); font-weight: 600; }

.sources { margin-top: 2px; }
.sources .src-label { font-size: 12px; color: var(--ink-2); }
.sources a {
  display: inline-block;
  font-size: 12.5px;
  color: var(--accent);
  margin: 2px 6px 2px 0;
  text-decoration: none;
}
.sources a:hover { text-decoration: underline; }

/* empty */
.empty {
  text-align: center;
  color: var(--ink-2);
  padding: 60px 0;
}

/* footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 22px 0 34px;
  color: var(--ink-2);
  font-size: 13px;
}
.site-footer p { margin: 4px 0; }

@media (max-width: 520px) {
  .brand h1 { font-size: 24px; }
  .header-inner { align-items: flex-start; }
}