:root {
  --ink: #121a22;
  --ink-soft: #2a3642;
  --muted: #667788;
  --muted-2: #8a97a5;
  --paper: #edf1f4;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-solid: #ffffff;
  --line: rgba(18, 26, 34, 0.1);
  --line-strong: rgba(18, 26, 34, 0.16);
  --accent: #0a5f5c;
  --accent-deep: #074845;
  --accent-soft: rgba(10, 95, 92, 0.1);
  --accent-line: rgba(10, 95, 92, 0.45);
  --red: #b42318;
  --red-bg: #f8e9e7;
  --orange: #b54708;
  --orange-bg: #faf0e6;
  --yellow: #8a6a10;
  --yellow-bg: #f7f1d8;
  --gray: #4d5d6b;
  --gray-bg: #e9eef2;
  --green: #176448;
  --green-bg: #e6f4ee;
  --shadow: 0 18px 50px rgba(18, 26, 34, 0.08);
  --radius: 18px;
  --font: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
  --max: 740px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.bg-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 48% at 50% -8%, rgba(10, 95, 92, 0.14), transparent 60%),
    radial-gradient(ellipse 40% 30% at 100% 20%, rgba(180, 35, 24, 0.04), transparent 55%),
    linear-gradient(180deg, #e7ecef 0%, var(--paper) 38%, #e8edf1 100%);
}
.bg-atmosphere::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  pointer-events: none;
}
.bg-atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(18, 26, 34, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 26, 34, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 68%);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.4rem 1.35rem 1.75rem;
  text-align: center;
  animation: rise 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-brand {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.35rem, 6.8vw, 3.15rem);
  letter-spacing: 0.08em;
  line-height: 1.12;
  color: var(--ink);
}
.hero-rule {
  width: 3.2rem;
  height: 2px;
  margin: 1.15rem auto 0;
  background: linear-gradient(90deg, transparent, var(--accent-line), transparent);
  border-radius: 2px;
  animation: rule-in 0.8s ease 0.15s both;
}
.hero-desc {
  margin: 1.15rem auto 0;
  max-width: 32em;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--muted);
  letter-spacing: 0.015em;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.35rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  width: 100%;
  flex: 1;
}

.surface {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.35rem 1.4rem 1.45rem;
  animation: rise 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.input-panel { animation-delay: 0.06s; }
.result-panel { animation-delay: 0.1s; }
.legend-panel { animation-delay: 0.14s; }

.eyebrow {
  margin: 0 0 0.28rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.panel-titles h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.head-actions { display: flex; gap: 0.4rem; }

.editor-shell {
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background:
    linear-gradient(180deg, #fbfcfd 0%, #f4f7f9 100%);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.editor-shell:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  background: var(--panel-solid);
}

textarea#code {
  display: block;
  width: 100%;
  min-height: 360px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.65;
  padding: 1.1rem 1.15rem;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  outline: none;
}
textarea#code::placeholder {
  color: var(--muted-2);
}

.toolbar {
  display: flex;
  justify-content: center;
  margin-top: 1.25rem;
}

.btn {
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 0.55rem 1.05rem;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s, border-color 0.2s, opacity 0.15s, box-shadow 0.2s;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn.primary {
  background: var(--accent);
  color: #fff;
  min-width: 11rem;
  padding: 0.82rem 1.9rem;
  font-size: 1rem;
  letter-spacing: 0.08em;
  box-shadow: 0 8px 20px rgba(10, 95, 92, 0.18);
}
.btn.primary:hover:not(:disabled) {
  background: var(--accent-deep);
  box-shadow: 0 10px 24px rgba(10, 95, 92, 0.24);
}
.btn.ghost {
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--line-strong);
  color: var(--muted);
  padding: 0.34rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 550;
  letter-spacing: 0.04em;
  border-radius: 8px;
}
.btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: #fff;
}

.verdict {
  display: grid;
  gap: 0.65rem;
  margin: 0.35rem 0 1.15rem;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(10, 95, 92, 0.05), rgba(18, 26, 34, 0.02));
  border: 1px solid var(--line);
}
.verdict-badge {
  display: inline-flex;
  width: fit-content;
  font-weight: 650;
  font-size: 0.84rem;
  letter-spacing: 0.03em;
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  border: 1px solid transparent;
}
.verdict-text {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--ink-soft);
}
.counts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.count-chip {
  font-size: 0.74rem;
  padding: 0.22rem 0.55rem;
  border-radius: 6px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
}

.hit {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1.05rem 0.95rem 1.15rem;
  margin-bottom: 0.65rem;
  background: var(--panel-solid);
  overflow: hidden;
  animation: rise 0.4s ease both;
}
.hit::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}
.hit:last-child { margin-bottom: 0; }
.hit.red::before { background: var(--red); }
.hit.orange::before { background: var(--orange); }
.hit.yellow::before { background: #c9a227; }
.hit.gray::before { background: var(--gray); }
.hit.red { background: linear-gradient(90deg, var(--red-bg), #fff 42%); }
.hit.orange { background: linear-gradient(90deg, var(--orange-bg), #fff 42%); }
.hit.yellow { background: linear-gradient(90deg, var(--yellow-bg), #fff 42%); }
.hit.gray { background: linear-gradient(90deg, var(--gray-bg), #fff 42%); }

.hit-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.7rem;
  margin-bottom: 0.35rem;
}
.hit-name {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink);
}
.hit-sev {
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  padding: 0.14rem 0.45rem;
  border-radius: 5px;
}
.hit-sev.red { background: var(--red-bg); color: var(--red); }
.hit-sev.orange { background: var(--orange-bg); color: var(--orange); }
.hit-sev.yellow { background: var(--yellow-bg); color: var(--yellow); }
.hit-sev.gray { background: var(--gray-bg); color: var(--gray); }
.hit-loc {
  font-size: 0.76rem;
  color: var(--muted-2);
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}
.hit-title {
  font-weight: 600;
  margin: 0 0 0.18rem;
  font-size: 0.92rem;
  color: var(--ink);
}
.hit-desc {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}
.hit-snip {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.76rem;
  line-height: 1.5;
  background: rgba(18, 26, 34, 0.04);
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--ink-soft);
}
.empty-hits {
  color: var(--muted);
  margin: 0;
  padding: 0.4rem 0;
  font-size: 0.92rem;
}

.catalog-box {
  margin-top: 1.1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}
.catalog-box summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  user-select: none;
}
.catalog-box summary:hover { color: var(--accent); }
.catalog {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.4rem;
  margin-top: 0.8rem;
}
.cat-item {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.38rem 0.5rem;
  border-radius: 8px;
  background: rgba(18, 26, 34, 0.035);
  color: var(--muted);
  border: 1px solid transparent;
  text-align: center;
}
.cat-item.found {
  font-weight: 600;
  border-color: rgba(180, 35, 24, 0.15);
}
.cat-item.found.red,
.cat-item.found { background: var(--red-bg); color: var(--red); }
.cat-item.found.orange { background: var(--orange-bg); color: var(--orange); }
.cat-item.found.yellow { background: var(--yellow-bg); color: var(--yellow); }
.cat-item.found.gray { background: var(--gray-bg); color: var(--gray); }

.legend {
  list-style: none;
  margin: 1rem 0 0.95rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}
.legend-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  align-items: start;
  padding: 0.85rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
  min-height: 100%;
}
.legend-item div {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  min-width: 0;
}
.legend-item strong {
  font-size: 0.9rem;
  font-weight: 650;
  color: var(--ink);
}
.legend-item span:last-child {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}
.legend-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.legend-item.red .legend-mark { background: var(--red-bg); color: var(--red); }
.legend-item.orange .legend-mark { background: var(--orange-bg); color: var(--orange); }
.legend-item.yellow .legend-mark { background: var(--yellow-bg); color: var(--yellow); }
.legend-item.gray .legend-mark { background: var(--gray-bg); color: var(--gray); }

.fineprint {
  margin: 0;
  color: var(--muted-2);
  font-size: 0.8rem;
  line-height: 1.65;
  padding-top: 0.15rem;
  border-top: 1px dashed var(--line);
  padding-top: 0.85rem;
}

.foot {
  text-align: center;
  color: var(--muted-2);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 0.5rem 1rem 2.4rem;
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  z-index: 50;
  box-shadow: 0 12px 32px rgba(18, 26, 34, 0.28);
  animation: rise 0.25s ease;
}

.verdict-badge.danger { background: var(--red-bg); color: var(--red); border-color: rgba(180, 35, 24, 0.18); }
.verdict-badge.warn { background: var(--orange-bg); color: var(--orange); border-color: rgba(181, 71, 8, 0.18); }
.verdict-badge.caution { background: var(--yellow-bg); color: var(--yellow); border-color: rgba(138, 106, 16, 0.18); }
.verdict-badge.review { background: var(--gray-bg); color: var(--gray); border-color: rgba(77, 93, 107, 0.18); }
.verdict-badge.clean { background: var(--green-bg); color: var(--green); border-color: rgba(23, 100, 72, 0.18); }

.count-chip.red { background: var(--red-bg); color: var(--red); border-color: rgba(180, 35, 24, 0.12); }
.count-chip.orange { background: var(--orange-bg); color: var(--orange); border-color: rgba(181, 71, 8, 0.12); }
.count-chip.yellow { background: var(--yellow-bg); color: var(--yellow); border-color: rgba(138, 106, 16, 0.12); }
.count-chip.gray { background: var(--gray-bg); color: var(--gray); border-color: rgba(77, 93, 107, 0.12); }

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes rule-in {
  from { opacity: 0; transform: scaleX(0.35); }
  to { opacity: 1; transform: scaleX(1); }
}

@media (max-width: 640px) {
  .hero { padding: 2.5rem 1.15rem 1.35rem; }
  .hero-desc { font-size: 0.9rem; }
  .surface { padding: 1.15rem 1.1rem 1.25rem; }
  .legend { grid-template-columns: 1fr; }
  .btn.primary { width: min(100%, 17rem); }
  .hit-loc { margin-left: 0; width: 100%; }
}