/* PUA（楚氏字典专造变形构件）+ CJK扩展区B（养/声/萤这类罕用部件本字）字体——
   835 个构件里有 136 个用了这两类特殊编码，普通字体（Noto Serif/Sans SC）没有
   对应字形，会显示成空心方块。字体文件跟 clavissinica.org 同一套，子集化后
   只保留 key_ime.json 实际用到的字形，74MB 降到几十 KB。
   （方案详见工程备忘录「汉字 PUA + 扩展区字符显示方案」，2026-10 一并修复） */
@font-face {
  font-family: 'KaiXinSong';
  src: url('/assets/fonts/KaiXinSong-subset.woff2') format('woff2');
  unicode-range: U+E000-F8FF;
  font-display: swap;
}
@font-face {
  font-family: 'BabelStone Han';
  src: url('/assets/fonts/BabelStoneHan-subset.woff2') format('woff2');
  unicode-range: U+20000-2FFFF;
  font-display: swap;
}
/* 注意：font-family 列表里不能写 inherit（CSS 全局关键字不能与字体名并列，整条会被丢弃）——之前就是这里写错，字体一直没生效 */
.kp .han, .vi-out .han { font-family: 'KaiXinSong', 'BabelStone Han', 'Noto Serif SC', 'Noto Sans SC', serif; }

/* 视觉输入（视觉检字法输入法）面板：浅色，和网站同色系；候选条在上，键盘在下 */
.kp-wrap{margin-top:12px}
.kp{--kp-ink:#13343f;--kp-line:#cfd9d6;--kp-key:#fff;--kp-accent:#f4a53a;--kp-green:#e3f4ea;--kp-green-line:#9fd3b4;--kp-soft:#5d7178;
  background:#eef3f1;color:var(--kp-ink);border:1px solid var(--kp-line);border-radius:18px;padding:12px;width:100%;max-width:820px;box-sizing:border-box;user-select:none;-webkit-user-select:none}
.kp-bar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-height:50px;background:#fff;border:1px solid var(--kp-line);border-radius:12px;padding:6px 10px}
.kp-chip{display:inline-flex;align-items:center;gap:5px;background:var(--kp-green);border:1px solid var(--kp-green-line);border-radius:10px;padding:2px 9px}
.kp-chip.cur{outline:2px solid var(--kp-accent)}
.kp-chip b{font-size:24px}.kp-chip small{font-size:11px;color:var(--kp-soft)}
.kp-st{font-size:26px;color:#c9701a;padding:0 3px;font-weight:700}
.kp-hint{color:var(--kp-soft);font-size:13px;padding:4px}
.kp-sp{flex:1}
.kp-act{background:#e4ebe8;color:var(--kp-ink);border:0;border-radius:10px;min-width:42px;height:38px;font-size:17px;cursor:pointer}
.kp-act:hover:not(:disabled){background:#d6e2de}.kp-act:disabled{opacity:.35;cursor:default}
.kp-title{font-size:12px;color:var(--kp-soft);margin:12px 2px 2px;font-weight:600}
.kp-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:8px}
.kp-comps{max-height:230px;overflow:auto;padding:2px}
.kp-cand{max-height:150px;overflow:auto;background:#dff1e8;border:1px solid var(--kp-green-line);border-radius:12px;padding:8px}
.kp-key{position:relative;min-width:46px;height:48px;border:1px solid var(--kp-line);border-radius:10px;background:var(--kp-key);color:var(--kp-ink);font-size:24px;cursor:pointer;padding:0 8px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 2px 0 #c3cfcb;transition:background .1s,transform .05s}
.kp-key:hover{background:#eefaf5}.kp-key:active{transform:translateY(2px);box-shadow:none}
.kp-key:focus-visible{outline:2px solid var(--kp-accent)}
.kp-key.hi{outline:3px solid var(--kp-accent);outline-offset:1px}
.kp-strokes{flex-wrap:nowrap;gap:6px}
.kp-key.st{flex:1;min-width:0;height:62px;background:var(--kp-green);border-color:var(--kp-green-line);box-shadow:0 2px 0 #84bd9a;font-size:28px}
.kp-key.st small{font-size:11px;line-height:1;color:var(--kp-soft)}
.kp-key.comp{font-size:28px;min-width:52px;height:54px}
.kp-key.big{background:#fff;font-size:30px;min-width:54px;height:56px;border-color:var(--kp-green-line)}
.kp-key.pos{min-width:72px;height:80px;gap:5px}
.kp-key.pos small{font-size:11px;line-height:1;color:var(--kp-soft)}
.kp-key.more{font-size:14px;min-width:68px;background:#e4ebe8}
.kp-n{position:absolute;top:3px;left:6px;font:700 10px/1 system-ui,sans-serif;font-style:normal;color:#c9701a}
.kp-grid{display:inline-grid;grid-template-columns:repeat(4,7px);grid-template-rows:repeat(4,7px);gap:1px}
.kp-key.pos .kp-grid{grid-template-columns:repeat(4,12px);grid-template-rows:repeat(4,12px);gap:2px}
.kp-grid i{background:#d3dcd9;border-radius:2px}.kp-grid i.on{background:#18a273}
.kp-letters{justify-content:center;gap:6px}
.kp-key.lt{flex:1;max-width:58px;min-width:0;height:52px;font-size:20px;font-family:system-ui,sans-serif}
.kp-key.lt.wide{max-width:84px;background:#e4ebe8}.kp-key.lt.on{background:var(--kp-ink);color:#fff}
.kp-bottom{align-items:stretch;gap:6px;margin-top:12px;flex-wrap:nowrap}
.kp-mode{background:#e4ebe8;color:var(--kp-ink);border:0;border-radius:10px;min-width:52px;height:48px;font-size:14px;font-weight:600;cursor:pointer;padding:0 8px}
.kp-mode:hover{background:#d6e2de}.kp-mode.on{background:var(--kp-ink);color:#fff}
.kp-key.space{flex:1;min-width:60px;font-size:14px;color:var(--kp-soft)}
.kp-foot{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;margin-top:10px;font-size:12px;color:var(--kp-soft)}
.kp-phys{display:inline-flex;align-items:center;gap:5px;cursor:pointer}
.kp-toggle{white-space:nowrap}
.find-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.find-bar input{flex:1;min-width:160px}
.find-res{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:14px}
.find-res a{display:block;text-decoration:none;color:inherit}
.find-res .big{font-size:40px;line-height:1.1}
@media (max-width:820px){.kp{padding:10px}.kp-key.comp{min-width:46px;height:50px}}
@media (max-width:480px){.kp-mode{min-width:40px;padding:0 4px;font-size:13px}.kp-bottom .kp-key{min-width:38px}.kp-key.space{min-width:50px}.kp-key.st{height:56px;font-size:24px}.kp-key.lt{height:46px;font-size:18px}.kp-letters{gap:4px}.kp-strokes{gap:4px}}
/* v2.19：构建预览、笔画颜色、常见位置、最近用过、输入框外壳 */
.kp-prev{grid-template-columns:repeat(4,11px);grid-template-rows:repeat(4,11px);gap:2px;padding:4px;background:#f1f5f3;border:1px dashed var(--kp-line);border-radius:8px}
.kp-prev i{background:#dfe6e3;border-radius:2px}.kp-prev i.on{box-shadow:inset 0 0 0 1px rgba(255,255,255,.35)}
.kp-key.st{border-bottom-width:4px}
.kp-key.pos.top{border-color:var(--kp-accent);box-shadow:0 2px 0 #e0a25a}
.kp-star{position:absolute;right:4px;top:3px;font-style:normal;font-size:10px;color:#c9701a;font-weight:700}
.kp-key.sm{min-width:40px;height:42px;font-size:22px}
.kp-recent{align-items:center;margin-top:8px;flex-wrap:nowrap;overflow:hidden}
.kp-help{color:#1b6f8a;text-decoration:underline;font-weight:600}
.kp-field{width:100%}.kp-field>.find-bar input{min-width:120px}
.kp-act{padding:0 10px;font-size:14px;white-space:nowrap}
/* 使用说明页 */
.ime-steps{list-style:none;margin:10px 0;padding:0;display:grid;gap:12px}
.ime-step{display:flex;gap:12px;align-items:flex-start}
.ime-n{flex:none;width:30px;height:30px;border-radius:50%;background:#13343f;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px}
.ime-t{font-weight:700}
.ime-strokes{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px}
.ime-stroke{display:flex;align-items:center;gap:10px;background:#f4f7f6;border-radius:12px;padding:8px 12px}
.ime-key{display:inline-flex;width:24px;height:24px;border-radius:6px;background:#13343f;color:#fff;align-items:center;justify-content:center;font-size:13px}
.ime-g{font-size:30px;line-height:1;min-width:30px;text-align:center}
.ime-keys{border-collapse:collapse;width:100%}.ime-keys th{text-align:left;white-space:nowrap;padding:6px 14px 6px 0;vertical-align:top}.ime-keys td{padding:6px 0}
.ime-keys kbd{background:#eef3f1;border:1px solid #cfd9d6;border-bottom-width:3px;border-radius:6px;padding:2px 8px;font:600 13px system-ui,sans-serif}
/* 两段式入口：先填 API Key（或直接试用），再进入干净的视觉输入面板 */
.vi-gate{background:#fff;border:1px solid #cfd9d6;border-radius:16px;padding:18px 20px;max-width:820px}
.vi-label{font-weight:600;color:#13343f;margin-bottom:10px}
.vi-key{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:15px}
.vi-err{color:#b4322b;font-size:13px;margin-top:8px}
.vi-alt{font-size:13px;color:#5d7178;margin-top:12px}
.vi-alt a{color:#1b6f8a;font-weight:600;text-decoration:underline}
.vi-app{max-width:820px}
.vi-outrow{display:flex;align-items:center;gap:8px}
.vi-out{flex:1;min-height:56px;display:flex;align-items:center;background:#fff;border:1px solid #cfd9d6;border-radius:12px;padding:8px 14px;font-size:30px;line-height:1.3;color:#13343f;word-break:break-all;user-select:text;-webkit-user-select:text}
.vi-ph{font-size:15px;color:#9aa8ad}
.vi-meta{font-size:12px;color:#5d7178;margin:8px 2px 0}
.vi-meta a{color:#1b6f8a;font-weight:600;text-decoration:underline}
.vi-app .kp-wrap{margin-top:10px}
/* 试用额度用完时的拦截提示 */
.kp-block{background:#fff6e5;border:1px solid #f1c27d;border-radius:12px;padding:12px 14px;font-size:14px;color:#13343f;width:100%}
.kp-block-t{font-weight:700;margin-bottom:4px}
.kp-block .kp-row{margin-top:8px}
.kp-key.st.dead{opacity:.3;cursor:not-allowed;box-shadow:none}
.kp-key.st:disabled{opacity:.3;cursor:not-allowed;box-shadow:none}
/* 教学版：四个步骤区块从上到下 */
.kp-step{margin:10px 0 0;padding:0;border:1px solid var(--kp-line);border-radius:12px;background:#fff;overflow:hidden}
.kp-step-h{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:14px;flex-wrap:wrap}
.kp-step-n{flex:none;width:22px;height:22px;border-radius:50%;background:#13343f;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.kp-step-t{font-weight:700;color:var(--kp-ink)}
.kp-step-s{color:var(--kp-soft);font-size:13px;display:inline-flex;align-items:center;gap:4px}
.kp-step-s b{font-size:20px}
.kp-step-edit{margin-left:auto;background:none;border:0;color:#1b6f8a;font-weight:600;cursor:pointer;text-decoration:underline;font-size:13px}
.kp-step.active{border-color:#18a273;box-shadow:0 0 0 2px #e3f4ea}
.kp-step.active .kp-step-n{background:#18a273}
.kp-step.done{background:#f4f7f6}
.kp-step.done .kp-step-n{background:#9fd3b4}
.kp-step.todo{opacity:.6}.kp-step.todo .kp-step-s{font-style:italic}
.kp-step-b{padding:4px 12px 12px;border-top:1px solid #e6ece9}
.kp-step-b .kp-title{margin-top:6px}
.kp-picked{display:inline-flex;gap:2px;vertical-align:middle}
.kp-narrow{font-size:13px;color:var(--kp-soft);margin-top:8px}
.kp-teach .kp-cand{background:#fff;border:0;padding:0}
.kp-play-btn{background:#13343f;color:#fff}
.kp-key.kp-play{outline:3px solid var(--kp-accent);outline-offset:2px;animation:kp-pulse .9s ease-in-out infinite}
@keyframes kp-pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
.kp-step-hint{flex-basis:100%;font-size:12.5px;color:var(--kp-soft);margin-top:2px;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.kp-step-hint .kp-st{font-size:20px}
.kp-teach .kp-step-b{padding-top:8px}
/* 正式版（紧凑）：候选字一行横滚、构件区矮一点、键盘贴底 */
.kp-compact .kp-cand{flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;max-height:none;padding:6px}
.kp-compact .kp-comps{max-height:150px}
.kp-compact .kp-key.comp{min-width:46px;height:48px;font-size:24px}
.kp-compact .kp-strokes{margin-top:8px}
.kp-compact .kp-key.st{height:56px}
.kp-compact .kp-bar{min-height:44px}
.kp-compact .kp-narrow{padding:6px 2px}
.vi-variant{margin-left:auto;display:inline-flex;border:1px solid #cfd9d6;border-radius:8px;overflow:hidden}
.vi-variant button{background:#fff;border:0;padding:3px 10px;font-size:12px;cursor:pointer;color:#5d7178}
.vi-variant button.on{background:#13343f;color:#fff}
.vi-meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap}