:root {
  --bg: #1a1410;
  --bg2: #241c15;
  --fg: #f0e6d6;
  --muted: #b8a98f;
  --accent: #d4a24a;
  --accent2: #8c5a3b;
  --border: #3a2c1e;
  --card: #2c2318;
  --link: #f0b860;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  line-height: 1.65;
}

header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #2a1f16, #1a1410);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.brand h1 {
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand .sub {
  color: var(--muted);
  font-size: 0.85rem;
}

.search-box {
  position: relative;
  max-width: 640px;
}

.search-box input {
  width: 100%;
  padding: 10px 52px 10px 14px;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #110c08;
  color: var(--fg);
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(212, 162, 74, 0.2);
}

.search-box kbd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.7rem;
  color: var(--muted);
  font-family: monospace;
}

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: calc(100vh - 130px);
}

#sidebar {
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg2);
}

.meta {
  display: flex;
  gap: 16px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}

.meta .k { color: var(--muted); }
.meta .v { color: var(--accent); margin-left: 4px; font-weight: 600; }

#list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
}

#list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
  gap: 8px;
}

#list li:hover { background: #332a20; }
#list li.active { background: #3d2e1d; border-left: 3px solid var(--accent); }

#list .t {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.88rem;
}

#list .c {
  flex-shrink: 0;
  font-size: 0.7rem;
  color: var(--muted);
  font-family: monospace;
}

#reader {
  overflow-y: auto;
  padding: 24px 32px;
}

#article h2 {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 6px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

#article .hint { color: var(--muted); font-style: italic; }

#article .content {
  max-width: 780px;
  margin: 20px 0;
}

#article .content h1 { font-size: 1.5rem; color: var(--accent); margin: 1.2em 0 0.4em; }
#article .content h2 { font-size: 1.2rem; color: var(--accent2); margin: 1em 0 0.3em; border: none; padding: 0; }
#article .content h3 { font-size: 1.05rem; margin: 0.8em 0 0.3em; }
#article .content h4 { font-size: 0.95rem; margin: 0.6em 0 0.2em; color: var(--fg); }
#article .content p { margin: 0.6em 0; }
#article .content pre { background: var(--card); padding: 12px; border-radius: 6px; overflow-x: auto; font-size: 0.85rem; margin: 0.8em 0; }
#article .content code { background: var(--card); padding: 1px 5px; border-radius: 3px; font-size: 0.85em; }
#article .content blockquote { border-left: 3px solid var(--accent2); padding: 4px 12px; margin: 0.6em 0; color: var(--muted); background: rgba(140, 90, 59, 0.1); }
#article .content table { width: 100%; border-collapse: collapse; margin: 0.8em 0; }
#article .content td { padding: 4px 8px; border: 1px solid var(--border); }
#article .content strong { color: var(--accent); font-weight: 600; }
#article .content em { color: var(--fg); font-style: italic; }

.error { color: #e74c3c; padding: 20px; background: #2a1a14; border-radius: 6px; border: 1px solid #5a2a1e; }

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
    height: calc(100vh - 130px);
  }
  #sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  #reader { padding: 16px; }
}