/* ============ 改革开放·年代档案 主题 CSS ============ */
ai {
  display: block;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: #3a2f25;
  background:
    radial-gradient(ellipse at top, rgba(193,39,45,.04), transparent 60%),
    repeating-linear-gradient(0deg, rgba(138,122,96,.04) 0 2px, transparent 2px 4px),
    linear-gradient(135deg, #f5ecd7 0%, #ede0c2 100%);
  padding: 14px;
  border: 1px solid #8a7a60;
  border-radius: 6px;
  box-shadow: 0 4px 18px rgba(60,40,20,.25), inset 0 0 60px rgba(193,39,45,.05);
  --red: #c1272d;
  --blue: #274c5e;
  --pink: #9b3d4f;
  --paper: #faf6e8;
  --kraft: #e8dcca;
  --ink: #2b2316;
  --gold: #b8860b;
  --term-bg: #1a1a1a;
  --term-fg: #6ec46e;
}

/* ========== 通用 details ========== */
ai details {
  margin: 10px 0;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(60,40,20,.15);
}
ai details summary {
  list-style: none;
  cursor: pointer;
  padding: 11px 14px 11px 32px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  position: relative;
  letter-spacing: 1px;
  user-select: none;
  transition: filter .25s;
}
ai details summary::-webkit-details-marker { display: none; }
ai details summary::before {
  content: "▶";
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  transition: transform .3s;
}
ai details[open] > summary::before { transform: translateY(-50%) rotate(90deg); }
ai details summary:hover { filter: brightness(1.15); }
ai details summary::after {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px; background: rgba(255,255,255,.5);
}

/* ========== 思维链终端 ========== */
ai cot { display: block; }
ai cot details {
  background: var(--term-bg);
  border: 1px solid #3a3a3a;
  position: relative;
}
ai cot details::before {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, rgba(110,196,110,.04) 0 2px, transparent 2px 4px);
  pointer-events: none;
  border-radius: 6px;
}
ai cot summary {
  background: linear-gradient(90deg, #2b2b2b, #1a1a1a);
  color: #cc7832 !important;
  font-family: "Consolas", "Courier New", monospace;
  border-bottom: 1px solid #3a3a3a;
}
ai cot summary::before { color: var(--term-fg); }
ai cot .trm {
  padding: 14px 16px;
  font-family: "Consolas", "Courier New", monospace;
  color: var(--term-fg);
  font-size: 13px;
  line-height: 1.85;
  position: relative;
  z-index: 1;
}
ai cot .trm p {
  margin: 4px 0;
  padding-left: 8px;
  border-left: 2px solid rgba(110,196,110,.3);
}
ai cot .trm p[t]::before {
  content: "[" attr(t) "] ";
  color: #cc7832;
  font-weight: bold;
}
ai cot .trm d {
  display: block;
  padding-left: 18px;
  position: relative;
  color: #a9b7c6;
  font-size: 12.5px;
}
ai cot .trm d::before {
  content: "›";
  position: absolute; left: 6px;
  color: var(--term-fg);
}
ai cot .trm::after {
  content: "█";
  color: var(--term-fg);
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ========== 时代历法卡 ========== */
ai era {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
  padding: 14px 18px;
  margin: 10px 0;
  background:
    linear-gradient(135deg, rgba(193,39,45,.08), transparent 40%),
    repeating-linear-gradient(45deg, rgba(139,69,19,.05) 0 2px, transparent 2px 8px),
    linear-gradient(180deg, #f3e2b5, #e8d094);
  border: 2px solid #8B4513;
  border-radius: 8px;
  position: relative;
  box-shadow: inset 0 0 30px rgba(139,69,19,.2), 0 3px 10px rgba(60,40,20,.25);
}
ai era::before, ai era::after {
  content: "★";
  position: absolute;
  color: var(--red);
  font-size: 14px;
  opacity: .6;
}
ai era::before { top: 4px; left: 8px; }
ai era::after { bottom: 4px; right: 8px; }
ai era .L, ai era .R, ai era .W {
  display: flex; flex-direction: column;
}
ai era .R { text-align: right; align-items: flex-end; }
ai era .W {
  grid-column: 1/-1;
  border-top: 1px dashed rgba(139,69,19,.4);
  padding-top: 6px;
  flex-direction: row;
  justify-content: space-between;
}
ai era .lb {
  font-size: 12px;
  color: #6b3410;
  letter-spacing: 1px;
  opacity: .85;
}
ai era .lv {
  font-size: 15px;
  font-weight: 700;
  color: #4a1f0a;
  font-family: "STKaiti", "KaiTi", serif;
  text-shadow: 1px 1px 0 rgba(255,215,0,.4);
}

/* ========== 记忆区 ========== */
ai .mem > summary { background: linear-gradient(90deg, #c1272d, #8a1a1f); }
ai .mb {
  background: var(--paper);
  padding: 14px;
  border: 1px solid #c1272d;
  border-top: none;
}
/* 长期记忆——红头文件 */
ai ltm { display: block; margin-bottom: 14px; }
ai ltm h2 {
  margin: 0 0 8px;
  padding: 8px 12px;
  background: linear-gradient(180deg, #c1272d 0%, #c1272d 70%, #8a1a1f 100%);
  color: #fff5d7;
  font-size: 14px;
  letter-spacing: 3px;
  text-align: center;
  font-family: "STSong", "SimSun", serif;
  border-radius: 3px 3px 0 0;
  text-shadow: 0 1px 2px rgba(0,0,0,.4);
}
ai ltm art {
  display: block;
  background:
    linear-gradient(180deg, #fffaeb, #f5ecd0);
  border: 1px solid #c9a86b;
  border-top: 3px double var(--red);
  padding: 10px 12px;
  margin-bottom: 8px;
  position: relative;
  font-family: "STSong", "SimSun", serif;
  box-shadow: 2px 2px 0 rgba(193,39,45,.15);
}
ai ltm art::after {
  content: "档案";
  position: absolute;
  right: 8px; top: 8px;
  width: 38px; height: 38px;
  border: 2px solid var(--red);
  border-radius: 50%;
  color: var(--red);
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transform: rotate(-12deg);
  opacity: .5;
}
ai ltm art b {
  color: var(--red);
  font-size: 14px;
  margin-right: 8px;
}
ai ltm art sub {
  color: #6b5a3a;
  font-size: 12px;
  font-style: italic;
}
ai ltm art p {
  margin: 6px 0 0;
  text-indent: 2em;
  color: #2b2316;
  line-height: 1.85;
  font-size: 13px;
}

/* 短期记忆——方格稿纸 */
ai stm { display: block; }
ai stm h2 {
  margin: 0 0 8px;
  padding: 7px 12px;
  background: linear-gradient(90deg, #4a5c60, #2c3a3d);
  color: #fff;
  font-size: 13px;
  letter-spacing: 2px;
  border-radius: 3px;
}
ai stm note {
  display: block;
  background:
    linear-gradient(#90b4d6 1px, transparent 1px) 0 0/100% 24px,
    linear-gradient(90deg, #90b4d6 1px, transparent 1px) 0 0/24px 100%,
    #fcfbf3;
  border: 1px solid #90b4d6;
  padding: 6px 10px;
  margin-bottom: 6px;
  border-left: 3px solid var(--blue);
  font-family: "KaiTi", "STKaiti", serif;
  font-size: 13px;
  color: #1a3450;
}
ai stm note b {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  padding: 1px 6px;
  border-radius: 2px;
  margin-right: 6px;
  font-size: 12px;
}
ai stm note sub { color: #6b5a3a; font-size: 11.5px; margin-right: 6px; }
ai stm note p { display: inline; margin: 0; }

/* ========== 关系榜 ========== */
ai .rel > summary { background: linear-gradient(90deg, #4a5c60, #2c3a3d); }
ai .rb {
  background: #f0f4f5;
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
  border: 1px solid #4a5c60;
  border-top: none;
}
ai card {
  display: block;
  background: linear-gradient(135deg, #fffdf5, #ede4cc);
  border: 1px solid #8a7a60;
  border-left: 5px solid var(--red);
  padding: 8px 10px;
  font-size: 12.5px;
  position: relative;
  box-shadow: 1px 1px 4px rgba(0,0,0,.1);
  transition: transform .2s, box-shadow .2s;
}
ai card:hover {
  transform: translateY(-2px);
  box-shadow: 2px 4px 10px rgba(193,39,45,.25);
}
ai card b { color: var(--blue); font-size: 14px; display: block; }
ai card sub { color: #6b5a3a; font-size: 11px; }
ai card d { display: block; margin-top: 4px; color: #4a3520; font-family: monospace; }

/* ========== 主角档案 ========== */
ai .me > summary { background: linear-gradient(90deg, #274c5e, #16323f); }
ai .mb2 {
  background:
    linear-gradient(90deg, var(--red) 0 3px, transparent 3px),
    linear-gradient(90deg, transparent 0 8px, rgba(193,39,45,.1) 8px 9px, transparent 9px),
    #e6f0f5;
  padding: 14px 14px 14px 20px;
  border: 1px solid #274c5e;
  border-top: none;
  font-size: 13.5px;
}
ai .mb2 d {
  display: block;
  padding: 3px 0;
  border-bottom: 1px dotted rgba(39,76,94,.25);
}
ai .mb2 d::before {
  content: "▸";
  color: var(--red);
  margin-right: 6px;
}

/* ========== 女NPC ========== */
ai .f > summary { background: linear-gradient(90deg, #9b3d4f, #6b2535); }
ai .fb {
  background:
    radial-gradient(circle at top right, rgba(255,182,193,.4), transparent 50%),
    linear-gradient(180deg, #fae6ea, #f5d5dd);
  padding: 14px;
  border: 1px solid #9b3d4f;
  border-top: none;
  font-size: 13px;
}
ai .fb grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
}
ai .fb grid d {
  padding: 3px 6px;
  background: rgba(255,255,255,.5);
  border-left: 2px solid var(--pink);
  font-size: 12.5px;
}
ai .fb h3 {
  margin: 12px 0 8px;
  color: var(--pink);
  font-size: 13.5px;
  text-align: center;
  letter-spacing: 2px;
  border-top: 1px dashed var(--pink);
  border-bottom: 1px dashed var(--pink);
  padding: 4px 0;
}
ai .fb > div > d {
  display: block;
  background: rgba(255,255,255,.55);
  margin: 4px 0;
  padding: 5px 10px;
  border-radius: 14px;
  font-size: 12.5px;
  color: #5a1f2c;
  border: 1px solid rgba(155,61,79,.2);
}
ai .fb voice {
  display: block;
  margin-top: 10px;
  padding: 10px 14px;
  background: linear-gradient(135deg, #fff8f0, #fae0e8);
  border: 1px dashed var(--pink);
  border-radius: 4px;
  font-family: "KaiTi", "STKaiti", serif;
  font-size: 14px;
  color: #6b2535;
  font-style: italic;
  position: relative;
}
ai .fb voice::before {
  content: "❝";
  position: absolute; top: -6px; left: 6px;
  font-size: 26px; color: var(--pink); opacity: .5;
}

/* ========== 男NPC ========== */
ai .m > summary { background: linear-gradient(90deg, #4a5c60, #2c3a3d); }
ai .mb3 {
  background:
    repeating-linear-gradient(0deg, rgba(74,92,96,.04) 0 24px, transparent 24px 25px),
    linear-gradient(180deg, #f0f0e6, #e6e6d8);
  padding: 14px 14px 30px;
  border: 1px solid #4a5c60;
  border-top: none;
  font-size: 13px;
  position: relative;
}
ai .mb3::after {
  content: "公章";
  position: absolute;
  right: 14px; bottom: 8px;
  width: 52px; height: 52px;
  border: 2px solid var(--red);
  border-radius: 50%;
  color: var(--red);
  font-family: "STSong", serif;
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-15deg);
  opacity: .55;
  letter-spacing: 1px;
  box-shadow: inset 0 0 0 1px var(--red);
}
ai .mb3 grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
}
ai .mb3 grid d {
  padding: 3px 8px;
  background: rgba(255,255,255,.55);
  border-left: 2px solid var(--blue);
  font-size: 12.5px;
}
ai .mb3 voice {
  display: block;
  margin-top: 12px;
  padding: 8px 12px;
  background: rgba(255,255,255,.7);
  border: 1px dashed var(--blue);
  font-family: "KaiTi", serif;
  font-style: italic;
  color: #1a3450;
  font-size: 13.5px;
}

/* ========== 暗流 ========== */
ai .bg > summary { background: linear-gradient(90deg, #5c4d66, #3a2f44); }
ai .bgb {
  background:
    radial-gradient(circle at 30% 30%, rgba(155,140,170,.3), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(193,39,45,.08), transparent 60%),
    #f0e6f5;
  padding: 14px;
  border: 1px solid #5c4d66;
  border-top: none;
  font-style: italic;
  font-size: 13px;
  color: #3a2f44;
  filter: contrast(.95);
}

/* ========== 抉择按钮 ========== */
ai choice {
  display: block;
  margin-top: 14px;
  padding: 16px;
  background:
    repeating-linear-gradient(45deg, rgba(193,39,45,.05) 0 8px, transparent 8px 16px),
    linear-gradient(180deg, #f3e8c4, #e6d6a8);
  border: 2px dashed #8a7a60;
  border-radius: 4px;
  text-align: center;
  position: relative;
}
ai choice::before, ai choice::after {
  content: "";
  position: absolute; top: 8px;
  width: 18px; height: 18px;
  background: var(--red);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%);
  opacity: .7;
}
ai choice::before { left: 12px; }
ai choice::after { right: 12px; transform: scaleX(-1); }
ai choice h3 {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 16px;
  letter-spacing: 4px;
  font-family: "STSong", "SimSun", serif;
  text-shadow: 1px 1px 0 rgba(255,215,0,.5);
}
ai btn {
  display: inline-block;
  margin: 5px;
  padding: 9px 18px;
  font-size: 13.5px;
  color: #fff;
  font-weight: 700;
  letter-spacing: 1px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  transition: transform .2s, box-shadow .2s, filter .2s;
  box-shadow: 0 3px 0 rgba(0,0,0,.2), 0 4px 8px rgba(0,0,0,.15);
}
ai btn[t="A"] { background: linear-gradient(180deg, #d63841, #a01c22); }
ai btn[t="B"] { background: linear-gradient(180deg, #34607a, #1c3a4a); }
ai btn[t="C"] { background: linear-gradient(180deg, #ad4f60, #6b2535); }
ai btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 5px 0 rgba(0,0,0,.2), 0 8px 16px rgba(0,0,0,.25);
}
ai btn:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(0,0,0,.2); }

/* ========== 正文 ========== */
ai text {
  display: block;
  background:
    repeating-linear-gradient(180deg, transparent 0 28px, rgba(193,39,45,.06) 28px 29px),
    linear-gradient(180deg, #fffdf5, #faf3df);
  border: 1px solid #c9a86b;
  border-left: 4px solid var(--red);
  padding: 18px 22px;
  margin: 10px 0;
  font-family: "STSong", "SimSun", serif;
  font-size: 15px;
  line-height: 2;
  color: #2b2316;
  text-indent: 2em;
  text-align: justify;
  box-shadow: inset 0 0 30px rgba(193,39,45,.04), 0 2px 8px rgba(60,40,20,.15);
}

/* ========== 移动端 ========== */
@media (max-width: 600px) {
  ai { padding: 10px; font-size: 13px; }
  ai era { grid-template-columns: 1fr; }
  ai era .R { text-align: left; align-items: flex-start; }
  ai .fb grid, ai .mb3 grid { grid-template-columns: 1fr; }
  ai .rb { grid-template-columns: 1fr; }
  ai text { padding: 14px; font-size: 14px; }
  ai btn { display: block; margin: 6px 0; }
}