:root {
  --bg: #0f1115;
  --bg-soft: #161922;
  --panel: #1b1f2a;
  --panel-2: #20252f;
  --line: #2a3040;
  --line-soft: #232838;
  --text: #e8ecf3;
  --muted: #9aa4b6;
  --faint: #6b7588;
  --accent: #6ea8fe;
  --accent-2: #b98bff;
  --accent-soft: rgba(110, 168, 254, 0.14);
  --good: #5fd39a;
  --warn: #ffcc66;
  --danger: #ff8585;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 460px at 78% -8%, rgba(110, 168, 254, 0.10), transparent 60%),
    radial-gradient(900px 420px at 5% 4%, rgba(185, 139, 255, 0.08), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(1080px, 92vw); margin: 0 auto; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(15, 17, 21, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; }
.brand-mark { font-size: 20px; }
.brand-name { letter-spacing: 0.2px; }
.topbar-actions { display: flex; gap: 8px; }

/* Buttons */
button { font-family: inherit; cursor: pointer; border: none; }
.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0c1018; font-weight: 700; font-size: 15px;
  padding: 12px 22px; border-radius: 11px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
  box-shadow: 0 6px 18px rgba(110, 168, 254, 0.28);
}
.primary:hover { transform: translateY(-1px); filter: brightness(1.05); }
.primary:active { transform: translateY(0); }
.ghost {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); padding: 9px 14px; border-radius: 10px;
  font-size: 13.5px; transition: border-color 0.12s, background 0.12s;
}
.ghost:hover { border-color: var(--accent); background: var(--panel); }
.ghost.small { padding: 6px 11px; font-size: 12.5px; }

/* Hero */
.hero { padding: 46px 0 24px; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.15; margin: 0 0 14px; letter-spacing: -0.5px; }
.hero .hl { background: linear-gradient(120deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .sub { font-size: clamp(15px, 2.3vw, 17px); color: var(--muted); max-width: 760px; margin: 0; }

/* Panel / form */
.panel {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field > label, .field-label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.req { color: var(--accent); }
.opt { color: var(--faint); font-weight: 400; font-size: 12.5px; }
input[type="text"] {
  width: 100%; background: var(--bg-soft); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font-size: 15px; transition: border-color 0.12s, box-shadow 0.12s;
}
input[type="text"]:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
input::placeholder { color: var(--faint); }
.hint { font-size: 12.5px; color: var(--faint); margin-top: 6px; }

/* Chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: var(--bg-soft); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 15px; font-size: 13.5px; transition: all 0.12s;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active { background: var(--accent-soft); border-color: var(--accent); color: var(--text); font-weight: 600; }

.actions-row { display: flex; gap: 10px; align-items: center; margin-top: 22px; flex-wrap: wrap; }

.samples { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.samples-label { font-size: 12.5px; color: var(--faint); }
.sample-link {
  background: transparent; color: var(--accent);
  border: 1px dashed var(--line); border-radius: 8px;
  padding: 5px 10px; font-size: 12.5px; transition: all 0.12s;
}
.sample-link:hover { border-color: var(--accent); background: var(--accent-soft); }

/* Result meta */
.result-meta {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin: 34px 0 14px; flex-wrap: wrap;
}
.result-meta-left { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.result-meta-left strong { font-size: 18px; }
.muted { color: var(--muted); font-size: 13.5px; }
.result-meta-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.filter-mini { display: flex; gap: 6px; }
.filter-mini .chip { padding: 5px 11px; font-size: 12px; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color 0.14s, transform 0.14s;
  position: relative;
}
.card:hover { border-color: var(--line); transform: translateY(-2px); }
.card-head { display: flex; align-items: center; gap: 10px; }
.card-emoji {
  font-size: 20px; width: 38px; height: 38px; flex: none;
  display: grid; place-items: center;
  background: var(--bg-soft); border: 1px solid var(--line-soft); border-radius: 10px;
}
.card-head-text { min-width: 0; }
.card-name { font-weight: 700; font-size: 15px; }
.card-tagline { font-size: 12px; color: var(--faint); }

.titles { display: flex; flex-direction: column; gap: 8px; }
.title-row {
  background: var(--bg-soft); border: 1px solid var(--line-soft);
  border-radius: 10px; padding: 10px 12px;
  display: flex; gap: 10px; align-items: flex-start;
}
.title-tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.4px;
  padding: 2px 7px; border-radius: 6px; flex: none; margin-top: 1px;
}
.tag-wechat { background: rgba(95, 211, 154, 0.16); color: var(--good); }
.tag-xhs { background: rgba(255, 133, 133, 0.16); color: var(--danger); }
.tag-video { background: rgba(185, 139, 255, 0.18); color: var(--accent-2); }
.title-text { font-size: 14px; line-height: 1.45; flex: 1; }
.title-copy {
  background: transparent; border: none; color: var(--faint);
  font-size: 13px; padding: 2px 4px; border-radius: 6px; flex: none; transition: color 0.12s;
}
.title-copy:hover { color: var(--accent); }

.meta-grid { display: flex; flex-direction: column; gap: 8px; font-size: 13px; }
.meta-item { display: flex; gap: 8px; }
.meta-key { color: var(--faint); flex: none; width: 52px; }
.meta-val { color: var(--text); flex: 1; }
.meta-val.risk { color: var(--warn); }

.card-foot { margin-top: auto; padding-top: 4px; }
.card-copy-all {
  width: 100%; background: var(--panel-2); color: var(--muted);
  border: 1px solid var(--line-soft); border-radius: 9px;
  padding: 8px; font-size: 12.5px; transition: all 0.12s;
}
.card-copy-all:hover { border-color: var(--accent); color: var(--text); }

/* Empty state */
.empty { text-align: center; color: var(--faint); padding: 40px 0 70px; }
.empty-art { font-size: 40px; margin-bottom: 12px; }
.empty p { margin: 0; font-size: 14px; }

/* Footer */
.footer { border-top: 1px solid var(--line-soft); margin-top: 40px; padding: 26px 0 40px; }
.footer-method { font-size: 13px; color: var(--muted); margin: 0 0 10px; }
.footer-fine { font-size: 12px; color: var(--faint); margin: 0; }
.footer code { background: var(--bg-soft); padding: 1px 5px; border-radius: 5px; font-size: 11.5px; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: #0c0f14; color: var(--text); border: 1px solid var(--accent);
  padding: 11px 20px; border-radius: 11px; font-size: 14px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: all 0.2s ease; z-index: 50;
  box-shadow: var(--shadow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 640px) {
  .hero { padding: 30px 0 18px; }
  .panel { padding: 18px; }
  .cards { grid-template-columns: 1fr; }
  .topbar-actions .ghost { padding: 8px 10px; font-size: 12.5px; }
  .brand-name { display: none; }
}

/* Print */
@media print {
  .topbar, .panel, .samples, .empty, .footer-fine, #btn-copy-all, .filter-mini,
  .title-copy, .card-copy-all, .actions-row, .hero .sub { display: none !important; }
  body { background: #fff; color: #111; }
  .hero h1 { color: #111; font-size: 24px; }
  .hero .hl { color: #111; -webkit-text-fill-color: #111; }
  .card { border: 1px solid #ccc; break-inside: avoid; page-break-inside: avoid; box-shadow: none; }
  .cards { grid-template-columns: 1fr 1fr; }
  .card-emoji, .title-row { background: #f4f4f4; border-color: #ddd; }
  .title-text, .meta-val, .card-name { color: #111; }
  .meta-val.risk { color: #a06b00; }
  .result-meta { margin-top: 10px; }
  a, .footer-method { color: #333; }
}