/* ==========================================================
   idiom-picture-guess 看图猜成语游戏
   视觉：灯谜画馆 —— 宣纸 + 墨 + 朱砂 + 鎏金，衬线标题
   ========================================================== */
:root {
  --ipg-paper: #f6f1e4;
  --ipg-card: #fdfaf1;
  --ipg-ink: #2f2a22;
  --ipg-ink2: #8a7f6a;
  --ipg-red: #b03a2e;
  --ipg-red-soft: #f3ded9;
  --ipg-gold: #b98a2f;
  --ipg-line: #e2d8c0;
  --ipg-ok: #2e7d4f;
  --ipg-ok-soft: #e7f1e8;
  --ipg-serif: Georgia, "Songti SC", "SimSun", serif;
}
:root[data-theme="dark"] {
  --ipg-paper: #241f17;
  --ipg-card: #2e281e;
  --ipg-ink: #ede4d0;
  --ipg-ink2: #a79b83;
  --ipg-red: #d96b5c;
  --ipg-red-soft: #452b26;
  --ipg-gold: #d1a44a;
  --ipg-line: #463d2c;
  --ipg-ok: #6cc292;
  --ipg-ok-soft: #24382c;
}

.ipg-page { max-width: 1200px; margin: 0 auto; padding: 0 0 40px; color: var(--ipg-ink); }

/* ---------- 首屏 ---------- */
.ipg-hero {
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 26px; align-items: stretch;
  padding: 34px; border: 1px solid var(--ipg-line); border-radius: 8px;
  background:
    radial-gradient(420px 200px at 100% 0%, rgba(185,138,47,.12), transparent 60%),
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(176,58,46,.025) 14px 15px),
    var(--ipg-paper);
}
.ipg-kicker {
  display: inline-block; font-size: 12px; letter-spacing: .22em; color: var(--ipg-gold);
  font-weight: 700; margin-bottom: 10px; font-family: var(--ipg-serif);
}
.ipg-hero h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; font-weight: 800; font-style: normal; font-family: var(--ipg-serif); letter-spacing: .02em; }
.ipg-lead { font-size: 15.5px; line-height: 1.9; margin: 0 0 14px; }
.ipg-lead b { color: var(--ipg-red); }
.ipg-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 18px; }
.ipg-tags li {
  font-size: 12.5px; padding: 4px 10px; border-radius: 4px; font-weight: 600;
  background: var(--ipg-card); border: 1px solid var(--ipg-line); color: var(--ipg-ink2);
  font-family: var(--ipg-serif);
}

.ipg-quick { background: var(--ipg-card); border: 1px solid var(--ipg-line); border-radius: 8px; padding: 14px 16px; }
.ipg-quick-title { font-weight: 700; font-size: 14px; margin-bottom: 10px; font-family: var(--ipg-serif); }
.ipg-quick-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.ipg-qfield { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--ipg-ink2); }
.ipg-qfield select {
  border: 1px solid var(--ipg-line); background: var(--ipg-paper); color: var(--ipg-ink);
  border-radius: 6px; padding: 8px 10px; font-size: 14px; min-width: 170px;
}

.ipg-btn {
  border: 1px solid var(--ipg-line); background: var(--ipg-card); color: var(--ipg-ink);
  padding: 9px 16px; border-radius: 6px; font-size: 13.5px; font-weight: 700; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease; font-family: var(--ipg-serif);
}
.ipg-btn:hover { transform: translateY(-1px); box-shadow: 0 3px 10px rgba(0,0,0,.12); }
.ipg-btn--red { background: var(--ipg-red); border-color: var(--ipg-red); color: #fff; }

/* ---------- 记分牌 ---------- */
.ipg-card {
  background: var(--ipg-card); border: 1px solid var(--ipg-gold); border-radius: 8px;
  padding: 18px; display: flex; flex-direction: column; gap: 12px; position: relative;
}
.ipg-card::before {
  content: "謎"; position: absolute; top: 12px; right: 14px; font-size: 34px; color: rgba(176,58,46,.14);
  font-family: var(--ipg-serif); font-weight: 800; pointer-events: none;
}
.ipg-card-head { display: flex; justify-content: space-between; align-items: baseline; }
.ipg-card-head b { font-size: 15px; font-family: var(--ipg-serif); }
.ipg-card-head span { font-size: 12px; color: var(--ipg-ink2); }
.ipg-card-big { display: flex; align-items: baseline; gap: 10px; }
.ipg-card-big em {
  font-style: normal; font-size: 12px; font-weight: 700; color: #fff; background: var(--ipg-gold);
  padding: 3px 9px; border-radius: 4px; letter-spacing: .1em;
}
.ipg-card-big b { font-size: 30px; color: var(--ipg-red); font-variant-numeric: tabular-nums; font-family: var(--ipg-serif); }
.ipg-card-sub { font-size: 12.5px; color: var(--ipg-ink2); }
.ipg-card-rows { display: flex; flex-direction: column; }
.ipg-card-row {
  display: flex; justify-content: space-between; padding: 9px 2px; font-size: 13.5px;
  border-top: 1px dashed var(--ipg-line);
}
.ipg-card-row .k { color: var(--ipg-ink2); }
.ipg-card-row .v { font-weight: 700; font-variant-numeric: tabular-nums; }
.ipg-card-row.is-key .v { color: var(--ipg-red); }
.ipg-stamp {
  align-self: flex-end; font-size: 15px; font-weight: 800; letter-spacing: .3em; text-indent: .3em;
  color: var(--ipg-red); border: 3px double var(--ipg-red); border-radius: 4px;
  padding: 6px 12px; transform: rotate(-6deg); opacity: .85; font-family: var(--ipg-serif);
}

/* ---------- 提示条 ---------- */
.ipg-alert {
  margin-top: 16px; padding: 11px 16px; border-radius: 6px; font-size: 14px; font-weight: 600;
  background: var(--ipg-red-soft); border: 1px solid var(--ipg-red); color: var(--ipg-red);
}

/* ---------- 面板 ---------- */
.ipg-panel {
  margin-top: 18px; background: var(--ipg-card); border: 1px solid var(--ipg-line);
  border-radius: 8px; padding: 22px 26px;
}
.ipg-panel-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.ipg-pk {
  font-size: 12px; font-weight: 800; letter-spacing: .14em; color: #fff; background: var(--ipg-ink);
  padding: 4px 9px; border-radius: 4px; flex: none; font-family: var(--ipg-serif);
}
.ipg-pk.is-amber { background: var(--ipg-gold); }
.ipg-panel-head h2 { font-size: 19px; margin: 0; font-style: normal; font-family: var(--ipg-serif); }
.ipg-panel-head h2 i { font-style: normal; font-size: 13px; color: var(--ipg-ink2); font-weight: 500; margin-left: 6px; }
.ipg-panel-side { margin-left: auto; font-size: 12.5px; color: var(--ipg-ink2); }

/* ---------- 舞台 ---------- */
.ipg-stage { display: grid; grid-template-columns: 340px 1fr; gap: 22px; align-items: start; }
.ipg-art {
  border: 2px solid var(--ipg-ink); border-radius: 6px; background: #fffdf6;
  padding: 12px; position: sticky; top: 16px;
}
.ipg-art svg { display: block; width: 100%; height: auto; }
.ipg-art-cap { text-align: center; font-size: 11.5px; color: var(--ipg-ink2); margin-top: 8px; letter-spacing: .1em; font-family: var(--ipg-serif); }

.ipg-clue {
  font-size: 13.5px; line-height: 1.8; color: var(--ipg-ink); background: var(--ipg-paper);
  border-left: 4px solid var(--ipg-gold); padding: 10px 14px; border-radius: 4px; margin-bottom: 14px;
}
.ipg-clue b { color: var(--ipg-red); }

.ipg-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ipg-opt {
  border: 1.5px solid var(--ipg-line); background: var(--ipg-paper); color: var(--ipg-ink);
  border-radius: 6px; padding: 13px 12px; font-size: 16px; font-weight: 700; cursor: pointer;
  font-family: var(--ipg-serif); letter-spacing: .06em; transition: all .12s ease; text-align: center;
}
.ipg-opt:hover { border-color: var(--ipg-gold); transform: translateY(-1px); }
.ipg-opt.ok { border-color: var(--ipg-ok); background: var(--ipg-ok-soft); color: var(--ipg-ok); }
.ipg-opt.bad { border-color: var(--ipg-red); background: var(--ipg-red-soft); color: var(--ipg-red); }
.ipg-opt[disabled] { cursor: default; transform: none; opacity: .92; }

.ipg-fill-cells { display: flex; gap: 10px; margin-bottom: 14px; }
.ipg-fill-cells input {
  width: 56px; height: 60px; text-align: center; font-size: 26px; font-weight: 700;
  border: 2px solid var(--ipg-gold); border-radius: 6px; background: var(--ipg-paper); color: var(--ipg-ink);
  font-family: var(--ipg-serif); outline: none;
}
.ipg-fill-cells input:focus { border-color: var(--ipg-red); }
.ipg-fill-cells input.ok { border-color: var(--ipg-ok); background: var(--ipg-ok-soft); color: var(--ipg-ok); }
.ipg-fill-cells input.bad { border-color: var(--ipg-red); background: var(--ipg-red-soft); color: var(--ipg-red); }

.ipg-verdict {
  margin-top: 14px; border-radius: 6px; padding: 14px 16px; font-size: 13.5px; line-height: 1.9;
  border: 1px solid var(--ipg-line); background: var(--ipg-paper);
}
.ipg-verdict.is-ok { border-color: var(--ipg-ok); background: var(--ipg-ok-soft); }
.ipg-verdict.is-bad { border-color: var(--ipg-red); background: var(--ipg-red-soft); }
.ipg-verdict-head { font-size: 15px; font-weight: 800; margin-bottom: 6px; }
.ipg-verdict.is-ok .ipg-verdict-head { color: var(--ipg-ok); }
.ipg-verdict.is-bad .ipg-verdict-head { color: var(--ipg-red); }
.ipg-verdict-word { font-family: var(--ipg-serif); font-size: 21px; font-weight: 800; letter-spacing: .08em; margin-bottom: 6px; }
.ipg-verdict-word span { font-size: 12.5px; color: var(--ipg-ink2); font-weight: 500; margin-left: 10px; letter-spacing: 0; }
.ipg-verdict p { margin: 4px 0; }
.ipg-verdict b { color: var(--ipg-red); }
.ipg-nextrow { margin-top: 14px; }

/* ---------- 终局 ---------- */
.ipg-end { text-align: center; padding: 10px 0 4px; }
.ipg-end-score { font-size: 40px; font-weight: 800; color: var(--ipg-red); font-family: var(--ipg-serif); }
.ipg-end-rate { font-size: 14px; color: var(--ipg-ink2); margin: 4px 0 14px; }
.ipg-end-word { font-size: 13.5px; color: var(--ipg-ink); margin-bottom: 12px; }
.ipg-end-wrong { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 16px; }
.ipg-end-wrong .ipg-wchip {
  font-size: 12.5px; padding: 5px 11px; border-radius: 999px; font-family: var(--ipg-serif); font-weight: 700;
  background: var(--ipg-red-soft); color: var(--ipg-red); border: 1px solid var(--ipg-red);
}
.ipg-end-wrong .ipg-wdone { font-size: 13px; color: var(--ipg-ink2); }
.ipg-end-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---------- 口径 / 介绍 ---------- */
.ipg-terms { display: grid; grid-template-columns: 1fr; }
.ipg-term { display: grid; grid-template-columns: 110px 1fr; gap: 14px; padding: 11px 2px; border-top: 1px dashed var(--ipg-line); font-size: 14px; line-height: 1.85; }
.ipg-term:first-child { border-top: 0; }
.ipg-term b { color: var(--ipg-gold); font-size: 13.5px; font-family: var(--ipg-serif); }
.ipg-term span b { color: var(--ipg-red); }
.ipg-intro-body p { margin: 0 0 10px; font-size: 14.5px; line-height: 2; }
.ipg-intro-body b { color: var(--ipg-red); }

/* ---------- FAQ ---------- */
.ipg-faq { display: flex; flex-direction: column; gap: 8px; }
.ipg-faq-item { border: 1px solid var(--ipg-line); border-radius: 6px; background: var(--ipg-paper); padding: 12px 16px; }
.ipg-faq-item summary { font-weight: 700; font-size: 14.5px; cursor: pointer; font-family: var(--ipg-serif); }
.ipg-faq-a { margin-top: 8px; font-size: 13.5px; line-height: 1.9; }
.ipg-faq-a b { color: var(--ipg-red); }

/* ---------- 相关工具 ---------- */
.ipg-rel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ipg-rel-card {
  display: flex; flex-direction: column; gap: 6px; text-decoration: none; color: var(--ipg-ink);
  background: var(--ipg-paper); border: 1px solid var(--ipg-line); border-radius: 6px; padding: 14px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.ipg-rel-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.10); }
.ipg-rel-card .ic { font-size: 20px; }
.ipg-rel-card b { font-size: 14px; }
.ipg-rel-card i { font-style: normal; font-size: 12.5px; color: var(--ipg-ink2); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .ipg-hero { grid-template-columns: 1fr; padding: 24px 20px; }
  .ipg-stage { grid-template-columns: 1fr; }
  .ipg-art { position: static; max-width: 420px; margin: 0 auto; }
  .ipg-rel-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .ipg-hero h1 { font-size: 23px; }
  .ipg-panel { padding: 16px 14px; }
  .ipg-panel-side { display: none; }
  .ipg-quick-row { flex-direction: column; align-items: stretch; }
  .ipg-qfield select { width: 100%; }
  .ipg-term { grid-template-columns: 1fr; gap: 2px; }
  .ipg-opts { grid-template-columns: 1fr; }
  .ipg-fill-cells input { width: 46px; height: 52px; font-size: 22px; }
  .ipg-rel-grid { grid-template-columns: 1fr; }
}