/* 中文转换组件样式 —— 全部收在 .zhc 作用域内，可安全嵌入任意主题（含 WordPress）。
   不修改 body / :root，不依赖全局 reset。 */

.zhc {
  --zhc-paper: #f5f3ef;
  --zhc-card: #ffffff;
  --zhc-ink: #1f2328;
  --zhc-muted: #6b7280;
  --zhc-line: #e5e1d8;
  --zhc-accent: #c2410c;
  --zhc-accent-weak: #fff2e9;
  --zhc-shadow: 0 1px 2px rgba(31, 35, 40, .05), 0 8px 24px -12px rgba(31, 35, 40, .12);
  --zhc-radius: 14px;
  --zhc-mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  --zhc-han: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;

  box-sizing: border-box;
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
  background: transparent;
  color: var(--zhc-ink);
  font-family: var(--zhc-han);
  font-size: 15px;
  line-height: 1.65;
  text-align: left;
  -webkit-text-size-adjust: 100%;
}

/* 只在组件内部重置：主题可能给 *、h3、p、ul、button 塞了各种规则 */
.zhc, .zhc *, .zhc *::before, .zhc *::after { box-sizing: border-box; }
.zhc p, .zhc ul, .zhc li { margin: 0; padding: 0; }
.zhc ul { list-style: none; }
.zhc h2, .zhc h3 { margin: 0; font-family: inherit; }
.zhc button, .zhc input, .zhc select, .zhc textarea { font-family: inherit; }
.zhc img, .zhc svg { max-width: 100%; }
.zhc [hidden] { display: none !important; }   /* .zhc-opts 用了 flex，会盖掉 UA 的 [hidden] */

/* ---------- 配色 ---------- */
@media (prefers-color-scheme: dark) {
  .zhc:not([data-theme="light"]) {
    --zhc-paper: #16181c;
    --zhc-card: #1e2126;
    --zhc-ink: #e8e6e1;
    --zhc-muted: #9aa1ab;
    --zhc-line: #2e3339;
    --zhc-accent: #fb923c;
    --zhc-accent-weak: #33241a;
    --zhc-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -14px rgba(0, 0, 0, .7);
  }
}
.zhc[data-theme="dark"] {
  --zhc-paper: #16181c;
  --zhc-card: #1e2126;
  --zhc-ink: #e8e6e1;
  --zhc-muted: #9aa1ab;
  --zhc-line: #2e3339;
  --zhc-accent: #fb923c;
  --zhc-accent-weak: #33241a;
  --zhc-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -14px rgba(0, 0, 0, .7);
}
.zhc[data-theme="paper"] {
  --zhc-paper: #eee9df;
  --zhc-card: #fbf8f2;
  --zhc-accent: #8a5a2b;
  --zhc-accent-weak: #f3e6d4;
  --zhc-line: #dcd3c2;
}

/* ---------- 标题 ---------- */
.zhc-title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--zhc-ink);
}

/* ---------- 标签页 ---------- */
.zhc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  margin-bottom: 14px;
  background: var(--zhc-card);
  border: 1px solid var(--zhc-line);
  border-radius: var(--zhc-radius);
  box-shadow: var(--zhc-shadow);
}
.zhc-tab {
  flex: 1 1 auto;
  min-width: 128px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 10px 16px;
  font-size: inherit;
  font-weight: 600;
  color: var(--zhc-muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  transition: background .16s, color .16s;
}
.zhc-tab:hover { color: var(--zhc-ink); background: color-mix(in srgb, var(--zhc-accent) 7%, transparent); }
.zhc-tab.is-active { color: #fff; background: var(--zhc-accent); box-shadow: 0 4px 14px -6px var(--zhc-accent); }
@media (prefers-color-scheme: dark) {
  .zhc:not([data-theme="light"]) .zhc-tab.is-active { color: #1a1206; }
}
.zhc[data-theme="dark"] .zhc-tab.is-active { color: #1a1206; }
.zhc-tab:focus-visible { outline: 2px solid var(--zhc-accent); outline-offset: 2px; }
.zhc-tab-i {
  width: 22px; height: 22px; flex: none;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 700;
  border-radius: 6px;
  background: color-mix(in srgb, currentColor 16%, transparent);
}
.zhc-tab.is-active .zhc-tab-i { background: rgba(0, 0, 0, .16); }

/* ---------- 选项条 ---------- */
.zhc-opts {
  padding: 0;
  background: transparent;
}
.zhc-optset {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding: 14px 18px;
  margin-bottom: 14px;
  background: var(--zhc-card);
  border: 1px solid var(--zhc-line);
  border-radius: var(--zhc-radius);
  box-shadow: var(--zhc-shadow);
}
.zhc-opt { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.zhc-l { font-size: 13px; color: var(--zhc-muted); white-space: nowrap; display: inline-flex; align-items: center; gap: 8px; }
.zhc-checks { gap: 16px; }
.is-disabled { opacity: .4; pointer-events: none; }

.zhc-chips {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  background: var(--zhc-paper);
  border: 1px solid var(--zhc-line);
  border-radius: 10px;
}
.zhc-chip { position: relative; cursor: pointer; }
.zhc-chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; width: 100%; height: 100%; }
.zhc-chip span {
  display: block;
  padding: 5px 11px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 400;
  color: var(--zhc-muted);
  white-space: nowrap;
  transition: background .15s, color .15s;
}
.zhc-chip:hover span { color: var(--zhc-ink); }
.zhc-chip input:checked + span { background: var(--zhc-card); color: var(--zhc-accent); font-weight: 700; box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }
.zhc-chip input:focus-visible + span { outline: 2px solid var(--zhc-accent); outline-offset: 2px; }

.zhc-check { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; cursor: pointer; color: var(--zhc-ink); }
.zhc-check input { width: 15px; height: 15px; min-width: 15px; margin: 0; accent-color: var(--zhc-accent); cursor: pointer; }

.zhc select {
  font: inherit;
  font-size: 13px;
  color: var(--zhc-ink);
  background: var(--zhc-card);
  border: 1px solid var(--zhc-line);
  border-radius: 8px;
  padding: 6px 10px;
  max-width: 100%;
  cursor: pointer;
}
.zhc select:focus-visible { outline: 2px solid var(--zhc-accent); outline-offset: 1px; }

/* 开关 */
.zhc-sw { position: relative; display: inline-flex; align-items: center; gap: 9px; cursor: pointer; user-select: none; }
.zhc-sw input { position: absolute; opacity: 0; width: 0; height: 0; margin: 0; }
.zhc-sw-t {
  flex: none;
  width: 44px; height: 24px;
  background: var(--zhc-line);
  border-radius: 999px;
  position: relative;
  transition: background .18s;
}
.zhc-sw-d {
  position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px;
  background: var(--zhc-card);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
  transition: transform .18s cubic-bezier(.4, 1.4, .6, 1);
}
.zhc-sw input:checked + .zhc-sw-t { background: var(--zhc-accent); }
.zhc-sw input:checked + .zhc-sw-t .zhc-sw-d { transform: translateX(20px); }
.zhc-sw input:focus-visible + .zhc-sw-t { outline: 2px solid var(--zhc-accent); outline-offset: 2px; }
.zhc-sw-x { font-size: 13px; font-weight: 700; color: var(--zhc-accent); min-width: 14px; }

/* ---------- 工作区 ---------- */
.zhc-ws { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .zhc-ws { grid-template-columns: 1fr; } }

.zhc-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--zhc-card);
  border: 1px solid var(--zhc-line);
  border-radius: var(--zhc-radius);
  box-shadow: var(--zhc-shadow);
  overflow: hidden;
}
.zhc-chead {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--zhc-line);
  background: color-mix(in srgb, var(--zhc-paper) 55%, var(--zhc-card));
}
.zhc-chead h3 { font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--zhc-muted); }
.zhc-ctools { display: flex; gap: 6px; flex-wrap: wrap; }

.zhc-btn {
  font: inherit; font-size: 13px; font-weight: 400; cursor: pointer;
  border-radius: 8px; border: 1px solid var(--zhc-line);
  background: var(--zhc-card); color: var(--zhc-ink);
  padding: 7px 13px;
  transition: border-color .15s, color .15s, background .15s;
}
.zhc-btn:hover { border-color: var(--zhc-accent); color: var(--zhc-accent); }
.zhc-btn:active { transform: translateY(1px); }
.zhc-btn:focus-visible { outline: 2px solid var(--zhc-accent); outline-offset: 2px; }
.zhc-mini { padding: 4px 10px; font-size: 12px; }
.zhc-accent { background: var(--zhc-accent-weak); border-color: transparent; color: var(--zhc-accent); font-weight: 600; }

.zhc-ta, .zhc-out {
  border: 0;
  padding: 16px;
  font-family: var(--zhc-han);
  font-size: 16px;
  line-height: 1.9;
  color: var(--zhc-ink);
  background: transparent;
  min-height: 260px;
  margin: 0;
}
.zhc-ta {
  outline: none;
  width: 100%;
  max-width: 100%;
  display: block;
  resize: vertical;
  border-radius: 0;
  box-shadow: none;
}
.zhc-ta::placeholder { color: color-mix(in srgb, var(--zhc-muted) 65%, transparent); }
.zhc-out { overflow: auto; white-space: pre-wrap; word-break: break-word; }
.zhc-out:focus-visible { outline: 2px solid var(--zhc-accent); outline-offset: -2px; }

.zhc-meta {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 8px 16px;
  border-top: 1px solid var(--zhc-line);
  font-size: 12px; color: var(--zhc-muted);
}
.zhc-aside { opacity: .8; }

/* ---------- 输出内容 ---------- */
.zhc-prose { white-space: pre-wrap; word-break: break-word; font-size: 17px; line-height: 2; }
.zhc-out mark {
  background: var(--zhc-accent-weak);
  color: var(--zhc-accent);
  font-weight: 700;
  border-radius: 3px;
  padding: 0 1px;
}
.zhc-hint { margin: 14px 0 0; font-size: 12px; line-height: 1.7; font-weight: 400; color: var(--zhc-muted); }
.zhc-note {
  margin-top: 16px; padding: 12px 14px;
  background: color-mix(in srgb, #f59e0b 10%, var(--zhc-card));
  border: 1px solid color-mix(in srgb, #f59e0b 40%, transparent);
  border-radius: 10px; font-size: 13px; color: var(--zhc-ink);
}
.zhc-note b { display: block; margin-bottom: 6px; font-weight: 700; }
.zhc-note ul { margin: 0; padding-left: 20px; list-style: disc; }
.zhc-note li { font-size: 13px; }
.zhc-warn {
  padding: 14px; border-radius: 10px; font-size: 14px;
  background: color-mix(in srgb, #dc2626 10%, var(--zhc-card));
  border: 1px solid color-mix(in srgb, #dc2626 35%, transparent);
  color: color-mix(in srgb, #dc2626 80%, var(--zhc-ink));
}

/* 逐字卡片 */
.zhc-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.zhc-cell {
  position: relative;
  width: 68px; padding: 6px 2px 8px;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font: inherit; color: var(--zhc-ink);
  background: color-mix(in srgb, var(--zhc-paper) 60%, var(--zhc-card));
  border: 1px solid var(--zhc-line);
  border-radius: 10px;
  cursor: default;
}
.zhc-poly { cursor: pointer; }
.zhc-poly:hover { border-color: var(--zhc-accent); background: var(--zhc-accent-weak); }
.zhc-poly:focus-visible { outline: 2px solid var(--zhc-accent); outline-offset: 2px; }
.zhc-cell-x {
  background: transparent; border-color: transparent;
  justify-content: center; min-width: 26px; width: auto; padding: 0 2px;
  font-size: 20px; color: var(--zhc-muted);
}
.zhc-py { font-family: var(--zhc-mono); font-size: 13px; color: var(--zhc-accent); font-weight: 600; min-height: 1em; }
.zhc-hz { font-size: 25px; line-height: 1.25; }
.zhc-badge {
  position: absolute; top: -6px; right: -5px;
  min-width: 16px; height: 16px; padding: 0 3px;
  display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
  color: #fff; background: var(--zhc-accent);
  border-radius: 999px;
}

/* 注音排版 */
.zhc-ruby { font-size: 25px; line-height: 2.9; }
.zhc-ruby ruby { ruby-align: center; margin: 0 1px; }
.zhc-ruby rt {
  font-family: var(--zhc-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--zhc-accent);
  line-height: 1.1;
}
.zhc-ruby rp { display: none; }

/* 火星文对照 */
.zhc-legend { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--zhc-line); }
.zhc-legend-t { font-size: 12px; color: var(--zhc-muted); margin-bottom: 9px; letter-spacing: .06em; }
.zhc-legend-l { display: flex; flex-wrap: wrap; gap: 6px; }
.zhc-legend-i {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; font-size: 15px;
  background: color-mix(in srgb, var(--zhc-paper) 60%, var(--zhc-card));
  border: 1px solid var(--zhc-line); border-radius: 999px;
}
.zhc-legend-i b { font-weight: 500; }
.zhc-legend-i i { color: var(--zhc-muted); font-style: normal; font-size: 12px; }
.zhc-legend-i .hi { color: var(--zhc-accent); font-weight: 700; }

/* ---------- 窄屏 / 无障碍 ---------- */
@media (max-width: 620px) {
  .zhc .zhc-optset { padding: 12px 14px; }
  .zhc .zhc-ta, .zhc .zhc-out { padding: 12px; min-height: 200px; }
  .zhc .zhc-tab { min-width: 0; padding: 9px 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .zhc *, .zhc *::before, .zhc *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}