ai {
  --bg: #0d0b10;
  --bg2: #141018;
  --bg3: #1a1520;
  --text: #c9c0b8;
  --text2: #8a8079;
  --gold: #d4a574;
  --gold2: #b8956a;
  --red: #8b1a1a;
  --red2: #c41e3a;
  --redglow: #5a0a1a;
  --purple: #4a0028;
  --purpleglow: rgba(74,0,40,0.4);
  --cold: #2a2a32;
  --green: #2d6a4f;
  --border: #2a2028;
  --textbg: #f5f0eb;
  --textcolor: #1a1a1a;
  display: block;
  position: relative;
  font-family: 'Noto Serif SC', serif;
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
  overflow: hidden;
}
ai::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--red), var(--purple), var(--red), transparent);
  animation: topline 4s ease-in-out infinite;
}
@keyframes topline {
  0%,100% { opacity: .6; }
  50% { opacity: 1; }
}
ai::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red2), transparent);
  opacity: .4;
}
ai hd {
  display: block;
  background: linear-gradient(135deg, var(--bg) 0%, #1a0f14 50%, var(--bg) 100%);
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 2px;
  text-align: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
ai hd::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, transparent, var(--red), var(--purple), transparent);
  animation: sidepulse 3s ease-in-out infinite;
}
ai hd::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, transparent, var(--purple), var(--red), transparent);
  animation: sidepulse 3s ease-in-out infinite reverse;
}
@keyframes sidepulse {
  0%,100% { opacity: .4; box-shadow: none; }
  50% { opacity: 1; box-shadow: 0 0 8px var(--redglow); }
}
ai text {
  display: block;
  background: var(--textbg);
  color: var(--textcolor);
  font-family: 楷体, KaiTi, "楷体_GB2312", STKaiti, 'Noto Serif SC', serif;
  font-size: 15.5px;
  line-height: 1.9;
  padding: 18px 16px;
  position: relative;
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, transparent 5%, var(--red) 30%, var(--purple) 70%, transparent 95%) 1;
}
ai text::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), var(--purple), transparent);
}
ai text p {
  margin: 0 0 10px 0;
  text-indent: 2em;
  color: var(--textcolor);
}
ai text p:last-child {
  margin-bottom: 0;
}
ai text q {
  display: block;
  font-style: italic;
  color: #6b2030;
  padding: 6px 0 6px 14px;
  border-left: 2px solid var(--red);
  margin: 8px 0;
  background: rgba(139,26,26,0.04);
  text-indent: 0;
  quotes: none;
}
ai details {
  display: block;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
ai details details {
  border-bottom: none;
  background: var(--bg2);
  margin: 4px 0;
}
ai summary {
  display: block;
  cursor: pointer;
  padding: 8px 16px 8px 20px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 1px;
  background: linear-gradient(90deg, var(--bg2), var(--bg));
  position: relative;
  transition: all .25s;
  list-style: none;
  user-select: none;
}
ai summary::-webkit-details-marker { display: none; }
ai summary::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--red), var(--purple));
  transition: all .3s;
}
ai summary::after {
  content: '▸';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  color: var(--text2);
  transition: transform .25s;
}
ai details[open] > summary::after {
  transform: translateY(-50%) rotate(90deg);
}
ai summary:hover {
  color: #e8d5b8;
  background: linear-gradient(90deg, #1e1520, var(--bg));
}
ai summary:hover::before {
  width: 4px;
  box-shadow: 0 0 10px var(--redglow), 0 0 20px rgba(74,0,40,0.3);
}
ai details details summary {
  padding: 6px 14px 6px 16px;
  font-size: 12.5px;
  background: linear-gradient(90deg, var(--bg3), var(--bg2));
  color: var(--gold2);
}
ai details details summary::before {
  width: 2px;
  background: var(--red);
  opacity: .5;
}
ai d {
  display: block;
  padding: 3px 16px 3px 20px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.65;
  position: relative;
}
ai d + d {
  border-top: 1px solid rgba(42,32,40,0.3);
}
ai d f {
  display: inline;
  color: var(--gold);
  font-weight: 600;
  font-size: 12.5px;
  margin-right: 4px;
}
ai d f::after {
  content: '：';
  color: var(--text2);
  font-weight: 400;
}
ai d[t="body"] {
  padding-left: 24px;
  border-left: 2px solid rgba(139,26,26,0.25);
  margin-left: 16px;
  background: linear-gradient(90deg, rgba(74,0,40,0.06), transparent);
}
ai d[t="h"] {
  padding: 8px 16px 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 1px;
  background: linear-gradient(90deg, rgba(139,26,26,0.12), transparent);
  border-bottom: 1px solid var(--border);
  margin-top: 4px;
  border-left: 3px solid var(--red);
}
ai d[t="h"] + d[t="tbl"] {
  margin-top: 2px;
}
ai d[t="tbl"] {
  display: grid;
  grid-template-columns: minmax(70px,auto) minmax(60px,auto) minmax(60px,auto) 1fr;
  gap: 0 8px;
  padding: 4px 16px 4px 20px;
  font-size: 12.5px;
  align-items: center;
}
ai d[t="tbl"] v {
  display: block;
  padding: 2px 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
ai d[t="tbl"] v:first-child {
  color: var(--text);
  font-weight: 600;
}
ai d[t="tbl"] v:nth-child(2) {
  color: #b0a8a0;
  font-family: 'Courier New', monospace;
  font-size: 12px;
}
ai d[t="tbl"] v:nth-child(3) {
  font-size: 11.5px;
}
ai d[t="sub"] {
  font-size: 12px;
  color: var(--gold2);
  font-weight: 600;
  padding: 6px 16px 2px 20px;
  margin-top: 4px;
  border-bottom: 1px dashed rgba(212,165,116,0.15);
}
ai d[t="sub"]::before {
  content: '◈ ';
  font-size: 9px;
  color: var(--red);
}
ai d[t="act"] {
  padding: 6px 16px 6px 24px;
  cursor: default;
  transition: all .2s;
  position: relative;
  font-size: 13px;
}
ai d[t="act"]::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: linear-gradient(90deg, rgba(139,26,26,0.2), transparent);
  transition: width .3s;
}
ai d[t="act"]:hover {
  color: #e8d5b8;
  transform: translateX(4px);
}
ai d[t="act"]:hover::before {
  width: 100%;
}
ai m {
  display: block;
  padding: 4px 16px 4px 26px;
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.6;
  position: relative;
}
ai m::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--red), var(--purple), transparent);
  opacity: .4;
}
ai m::after {
  content: '';
  position: absolute;
  left: 14px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  opacity: .6;
  box-shadow: 0 0 4px var(--redglow);
}
ai m + m { margin-top: 2px; }
ai details[open] {
  background: linear-gradient(180deg, var(--bg), var(--bg2) 30px, var(--bg) 100%);
}
ai details[open] > summary {
  border-bottom: 1px solid var(--border);
}
ai details[open] > summary::before {
  box-shadow: 0 0 6px var(--redglow);
}
@media (max-width: 500px) {
  ai text { padding: 14px 12px; font-size: 15px; }
  ai d { padding: 3px 10px 3px 14px; font-size: 12.5px; }
  ai d[t="tbl"] {
    grid-template-columns: minmax(55px,auto) minmax(50px,auto) 1fr;
    font-size: 11.5px;
  }
  ai d[t="tbl"] v:nth-child(4) {
    grid-column: 1 / -1;
    font-size: 11px;
    color: var(--text2);
    padding-left: 8px;
  }
  ai d[t="body"] { margin-left: 10px; padding-left: 18px; }
  ai summary { padding: 7px 12px 7px 16px; font-size: 13px; }
  ai hd { padding: 8px 12px; font-size: 12px; }
  ai d[t="act"] { padding: 5px 12px 5px 18px; }
}
@media (max-width: 380px) {
  ai text { padding: 12px 10px; font-size: 14.5px; }
  ai d[t="tbl"] {
    grid-template-columns: 1fr 1fr;
  }
  ai d[t="tbl"] v:nth-child(3),
  ai d[t="tbl"] v:nth-child(4) {
    grid-column: 1 / -1;
    font-size: 11px;
  }
}
/* 隐藏思维链 */
ai details.cot {
  display: none !important;
}