:root {
  --blue: #3B82F6;
  --deep: #2F6FE0;
  --ink: #1F2733;
  --body: #3D4757;
  --muted: #95A0AE;
  --bg: #F4F6FA;
  --card: #FFFFFF;
  --line: #EDF0F5;
  --green: #16A34A;
  --green-bg: #E9F9EF;
  --amber: #D97706;
  --amber-bg: #FFF4E5;
  --red: #DC2626;
  --red-bg: #FDECEC;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--body);
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- header ---------- */
.top {
  background: linear-gradient(150deg, #5B95FF 0%, #3B82F6 60%, #2F6FE0 100%);
  color: #fff;
  padding: 28px 0 20px;
  border-radius: 0 0 24px 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 18px rgba(47, 111, 224, .25);
}
.top h1 { margin: 0; font-size: 24px; letter-spacing: 1px; }
.top h1 .count {
  font-size: 13px; font-weight: 500; opacity: .85;
  background: rgba(255,255,255,.2); border-radius: 999px;
  padding: 3px 12px; margin-left: 8px; vertical-align: middle;
}
.sub { margin: 8px 0 16px; font-size: 13px; opacity: .85; }
.searchrow { display: flex; gap: 10px; margin-bottom: 12px; }
.searchrow input {
  flex: 1; border: none; border-radius: 999px;
  padding: 11px 18px; font-size: 14px; outline: none;
  background: rgba(255,255,255,.96); color: var(--ink);
}
.searchrow button {
  border: none; border-radius: 999px; padding: 0 20px;
  font-size: 14px; cursor: pointer; white-space: nowrap;
}
.primary { background: #fff; color: var(--deep); font-weight: 600; }
.ghost { background: rgba(255,255,255,.18); color: #fff; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.chip {
  border: 1px solid rgba(255,255,255,.45); color: #fff;
  background: transparent; border-radius: 999px;
  padding: 6px 14px; font-size: 13px; cursor: pointer;
}
.chip.on { background: #fff; color: var(--deep); font-weight: 600; border-color: #fff; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filters select {
  border: none; border-radius: 10px; padding: 8px 12px;
  font-size: 13px; color: var(--ink); background: rgba(255,255,255,.96);
  outline: none; cursor: pointer;
}
.toggle { font-size: 13px; display: flex; align-items: center; gap: 6px; cursor: pointer; }
.toggle input { width: 15px; height: 15px; accent-color: #fff; }
.stats { margin-top: 12px; font-size: 13px; opacity: .92; display: flex; gap: 14px; flex-wrap: wrap; }
.stats b { font-size: 15px; }

/* ---------- cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
  padding: 20px 0 8px;
}
.card {
  background: var(--card); border-radius: 16px;
  padding: 16px; box-shadow: 0 2px 10px rgba(30,50,90,.06);
  display: flex; flex-direction: column; gap: 8px;
  border: 2px solid transparent;
}
.card.s-已选 { border-color: var(--green); }
.card.s-备选 { border-color: var(--amber); }
.card.s-放弃 { border-color: var(--red); opacity: .75; }
.chead { display: flex; align-items: center; gap: 8px; }
.cid { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
.ccat {
  font-size: 11px; color: var(--deep); background: #EAF1FF;
  border-radius: 6px; padding: 2px 8px; font-weight: 500;
}
.card h3 { margin: 0; font-size: 16px; color: var(--ink); }
.desc { margin: 0; font-size: 13.5px; line-height: 1.65; color: var(--body); flex: 1; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 11px; color: var(--muted); background: #F2F5FA;
  border-radius: 6px; padding: 3px 8px;
}
.tag.sat-低 { color: var(--green); background: var(--green-bg); font-weight: 600; }
.tag.sat-中 { color: var(--amber); background: var(--amber-bg); font-weight: 600; }
.tag.diff-低 { color: var(--green); }
.tag.diff-中 { color: var(--amber); }
.tag.diff-高 { color: var(--red); }
.mark { display: flex; gap: 6px; padding-top: 4px; border-top: 1px solid var(--line); padding-top: 10px; }
.mark button {
  flex: 1; border: 1px solid var(--line); background: #fff;
  border-radius: 8px; padding: 7px 0; font-size: 12.5px;
  color: var(--body); cursor: pointer;
}
.mark button.on-备选 { background: var(--amber-bg); border-color: var(--amber); color: var(--amber); font-weight: 600; }
.mark button.on-已选 { background: var(--green-bg); border-color: var(--green); color: var(--green); font-weight: 600; }
.mark button.on-放弃 { background: var(--red-bg); border-color: var(--red); color: var(--red); font-weight: 600; }
.mark button.note-btn { flex: 0 0 auto; padding: 7px 12px; }
.mark button.note-btn.has { border-color: var(--deep); color: var(--deep); font-weight: 600; }
.note {
  width: 100%; border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 10px; font-size: 13px; line-height: 1.6;
  font-family: inherit; resize: vertical; min-height: 56px;
  outline: none; color: var(--ink);
}
.note:focus { border-color: var(--blue); }
.empty { text-align: center; color: var(--muted); padding: 60px 0; font-size: 14px; }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 0 40px; }

@media (max-width: 640px) {
  .searchrow { flex-wrap: wrap; }
  .searchrow input { flex: 1 1 100%; }
}