/* ============================================================
   Hanzi Studio — 单字落地页（/char/xxx.html）
   与 base.css 共用 token，只补这一页需要的布局与字格
   ============================================================ */

.char-shell { padding: 10px 0 46px; }

.char-crumb {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  font-size: 13px; color: var(--ink-3); padding: 14px 0 0;
}
.char-crumb a { color: var(--ink-2); text-decoration: none; }
.char-crumb a:hover { color: var(--seal); }
.char-crumb span[aria-hidden] { color: var(--line-3); }

.char-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 26px;
  align-items: start;
  margin-top: 22px;
}
@media (max-width: 900px) { .char-layout { grid-template-columns: 1fr; } }

.char-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px;
}

/* ---------- 米字格舞台 ---------- */
.char-stage-wrap { display: flex; flex-direction: column; align-items: center; gap: 18px; }

.char-stage {
  position: relative;
  width: 288px; height: 288px;
  background-color: var(--surface-2);
  border: 2px solid var(--grid-line);
  background-image:
    linear-gradient(to right,
      transparent calc(50% - 1px), var(--grid-line) calc(50% - 1px),
      var(--grid-line) calc(50% + 1px), transparent calc(50% + 1px)),
    linear-gradient(to bottom,
      transparent calc(50% - 1px), var(--grid-line) calc(50% - 1px),
      var(--grid-line) calc(50% + 1px), transparent calc(50% + 1px));
  background-size: 100% 100%, 100% 100%;
  background-repeat: no-repeat;
}

/* 对角线：用旋转的细线，长度覆盖整格 */
.char-stage__diag {
  position: absolute; top: 0; left: 0;
  width: 141.421%; height: 1px;
  background: var(--grid-line);
  transform-origin: 0 0;
  transform: rotate(45deg);
  pointer-events: none;
}
.char-stage__diag--b {
  left: auto; right: 0;
  transform-origin: 100% 0;
  transform: rotate(-45deg);
}

.char-glyph {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", "Songti SC", serif;
  font-size: 200px; line-height: 1;
  color: var(--grid-ink);
  user-select: none;
  transition: opacity .25s ease;
}
.char-glyph[hidden] { display: none; }

.char-writer {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.char-writer svg { display: block; }

.char-stage-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.char-stage-actions .btn { font-size: 14px; padding: 9px 16px; }

.char-hint { font-size: 12.5px; color: var(--ink-3); text-align: center; margin: 0; }

/* ---------- 属性表 ---------- */
.char-facts { margin: 0; display: grid; gap: 0; }
.char-facts > div {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}
.char-facts > div:last-child { border-bottom: 0; }
.char-facts dt { color: var(--ink-3); font-size: 13.5px; margin: 0; }
.char-facts dd { margin: 0; font-weight: 600; font-size: 14.5px; text-align: right; color: var(--ink); }
.char-facts dd .py { color: var(--seal); font-weight: 700; }

.char-side-title { font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 12px; }

/* ---------- 相关字 / 链接块 ---------- */
.char-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.char-chip {
  display: inline-flex; flex-direction: column; align-items: center; gap: 2px;
  min-width: 62px; padding: 10px 8px;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--surface-2); text-decoration: none; color: var(--ink);
  transition: border-color .15s ease, transform .15s ease;
}
.char-chip:hover { border-color: var(--seal-line); transform: translateY(-1px); }
.char-chip b { font-family: "Kaiti SC", "STKaiti", "KaiTi", serif; font-size: 24px; line-height: 1.1; }
.char-chip i { font-style: normal; font-size: 11.5px; color: var(--ink-3); }

/* ---------- FAQ ---------- */
.char-faq { display: grid; gap: 14px; }
.char-faq__q { font-weight: 700; font-size: 15.5px; margin: 0 0 4px; }
.char-faq__a { margin: 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.65; }

/* ---------- 上/下一个字 ---------- */
.char-pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 26px; }
.char-pager a {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 16px; border: 1px solid var(--line); border-radius: 12px;
  text-decoration: none; color: var(--ink-2); background: var(--surface);
  font-size: 14px; max-width: 48%;
}
.char-pager a:hover { border-color: var(--seal-line); color: var(--seal); }
.char-pager b { font-family: "Kaiti SC", "STKaiti", "KaiTi", serif; font-size: 22px; color: var(--ink); }

/* ---------- 索引页：搜索 + 分级归类 ---------- */
.hub-search { margin-top: 20px; max-width: 420px; }
.hub-search .input { width: 100%; }
.hub-count { margin: 8px 0 0; }

.hub-group + .hub-group { margin-top: 22px; }
.hub-group__head {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 6px; padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.hub-group__head h2 { margin: 0; font-size: 22px; }
.hub-group__count { font-size: 13px; color: var(--ink-3); }

.hub-letter {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}
.hub-letter:last-child { border-bottom: 0; padding-bottom: 0; }
.hub-letter__k {
  font-size: 12px; font-weight: 700; letter-spacing: .1em;
  color: var(--seal); padding-top: 12px;
}
.hub-letter .char-chips {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(66px, 1fr));
  gap: 8px;
}
.hub-letter .char-chip { padding: 9px 6px; }

/* hidden 属性要压过 display:flex / grid */
.char-chip[hidden], .hub-letter[hidden], .hub-group[hidden] { display: none !important; }