/* ================================================
   AIKnowledgeCMS CSS — 白背景版
   ================================================ */
:root {
  --green:   #7c3aed; --gdim: #6d28d9; --gbg: rgba(124,58,237,.05);
  --gborder: rgba(124,58,237,.2); --dark: #f8f9fa;
  --text:    #1e293b; --muted: #64748b; --vm: #94a3b8;
  --orange:  #d97706; --obg: rgba(217,119,6,.05); --oborder: rgba(217,119,6,.25);
  --blue:    #2563eb; --bbg: rgba(37,99,235,.05); --bborder: rgba(37,99,235,.2);
  --red:     #dc2626;
  --surface: #ffffff; --border: #e2e8f0;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--dark);
  color: var(--text);
  font-family: 'Exo 2', sans-serif;
  font-size: 14px;
  min-height: 100vh;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--green); }

@keyframes fadeUp { from { opacity:0; transform:translateY(8px) } to { opacity:1; transform:none } }

/* ---- app ---- */
.app { padding: 24px 20px; max-width: 1100px; margin: 0 auto; }

/* ---- header-bar ---- */
.header-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.cms-logo img { height: 28px; vertical-align: middle; }
.aitrend-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Share Tech Mono', monospace;
  font-size: .68rem;
  color: var(--muted);
  text-decoration: none;
  transition: color .15s;
}
.aitrend-link img { height: 18px; }
.aitrend-link:hover { color: var(--green); }
.aitrend-text { display: none; }
@media (min-width: 700px) { .aitrend-text { display: inline; } }

/* ---- login bar ---- */
.cms-loginbar {
  margin-left: auto;
  font-family: 'Share Tech Mono', monospace;
  font-size: .72rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.cms-loginbar a {
  color: var(--muted);
  text-decoration: none;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all .2s;
}
.cms-loginbar a:hover { color: var(--green); border-color: var(--green); }
.cms-loginbar .user { color: var(--green); font-weight: 600; }

/* ---- h1 ---- */
h1 {
  font-family: 'Share Tech Mono', monospace;
  font-size: .82rem;
  color: var(--muted);
  letter-spacing: .08em;
  margin-bottom: 18px;
  font-weight: normal;
}

/* ---- admin seed form ---- */
.seed-form {
  background: var(--obg);
  border: 1px solid var(--oborder);
  border-radius: 6px;
  padding: 14px 16px;
  margin-bottom: 16px;
  position: relative;
}
.seed-form::before { display: none; }
.seed-form-title {
  font-family: 'Share Tech Mono', monospace;
  font-size: .68rem;
  color: var(--orange);
  letter-spacing: .1em;
  margin-bottom: 10px;
}
.seed-form input[type=text] {
  background: var(--surface);
  border: 1px solid var(--oborder);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 4px;
  font-family: 'Share Tech Mono', monospace;
  font-size: .82rem;
  width: 260px;
  outline: none;
  transition: border-color .15s;
}
.seed-form input[type=text]:focus { border-color: var(--orange); }
.seed-form input[type=text]::placeholder { color: var(--vm); }
.seed-form button {
  padding: 8px 18px;
  background: var(--obg);
  color: var(--orange);
  border: 1px solid var(--oborder);
  border-radius: 4px;
  font-family: 'Share Tech Mono', monospace;
  font-size: .8rem;
  cursor: pointer;
  margin-left: 8px;
  transition: all .15s;
}
.seed-form button:hover { background: rgba(217,119,6,.15); }

/* ---- keyword tags nav ---- */
.keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.keywords a {
  font-family: 'Share Tech Mono', monospace;
  font-size: .7rem;
  color: var(--green);
  background: var(--gbg);
  border: 1px solid var(--gborder);
  padding: 3px 10px;
  border-radius: 20px;
  text-decoration: none;
  transition: all .15s;
  letter-spacing: .03em;
}
.keywords a:hover { background: rgba(124,58,237,.12); border-color: var(--green); }

/* ---- date nav ---- */
.date-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-family: 'Share Tech Mono', monospace;
  font-size: .78rem;
}
.date-nav a {
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--surface);
  transition: all .2s;
}
.date-nav a:hover { color: var(--green); border-color: var(--green); }
.date-nav strong { color: var(--text); letter-spacing: .06em; font-weight: 600; }

/* ---- keyword block ---- */
.keyword {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px 18px;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
  animation: fadeUp .3s ease both;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.keyword::before { display: none; }
.keyword h3 {
  font-family: 'Share Tech Mono', monospace;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: .04em;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--text);
}
.keyword h3 a { color: var(--green); }
.keyword h3 a:hover { text-decoration: underline; }
.kw-views {
  font-size: .65rem;
  color: var(--vm);
  font-weight: normal;
}

/* ---- scroll ---- */
.scroll {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.scroll::-webkit-scrollbar { height: 4px; }
.scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ---- card ---- */
.card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px;
  min-width: 300px;
  max-width: 360px;
  flex-shrink: 0;
  transition: border-color .2s, box-shadow .2s;
}
.card:hover { border-color: var(--gborder); box-shadow: 0 2px 8px rgba(124,58,237,.08); }
.card textarea {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: 'Exo 2', sans-serif;
  font-size: .78rem;
  line-height: 1.7;
  resize: none;
  outline: none;
  min-height: 90px;
  margin-bottom: 10px;
}
.card hr { border: none; border-top: 1px solid var(--border); margin: 8px 0; }
.card .title {
  font-size: .8rem;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 4px;
}
.card .muted {
  font-family: 'Share Tech Mono', monospace;
  font-size: .65rem;
  color: var(--vm);
  margin-bottom: 5px;
}
.card a {
  font-family: 'Share Tech Mono', monospace;
  font-size: .68rem;
  color: var(--blue);
  border: 1px solid var(--bborder);
  padding: 3px 9px;
  border-radius: 4px;
  display: inline-block;
  background: var(--bbg);
  transition: all .15s;
}
.card a:hover { background: rgba(37,99,235,.1); }

/* ---- loading ---- */
#loading-indicator {
  text-align: center;
  font-family: 'Share Tech Mono', monospace;
  font-size: .72rem;
  color: var(--vm);
  padding: 24px;
  letter-spacing: .08em;
}

/* ---- thinking overlay ---- */
#thinking-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.88);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
#thinking-overlay.show { display: flex; }
#thinking-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 40px;
  text-align: center;
  font-family: 'Share Tech Mono', monospace;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
}
#thinking-title {
  font-size: 1.1rem;
  color: var(--green);
  letter-spacing: .1em;
  margin-bottom: 10px;
}
#thinking-sub { font-size: .75rem; color: var(--muted); letter-spacing: .05em; }

/* ---- footer ---- */
.site-footer {
  text-align: center;
  font-family: 'Share Tech Mono', monospace;
  font-size: .62rem;
  color: var(--vm);
  padding: 20px;
  margin-top: 30px;
  border-top: 1px solid var(--border);
}

/* ---- summary link ---- */
.summary-link {
  font-size: .72rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--surface);
}
.summary-link:hover { color: var(--green); border-color: var(--green); }