:root{
  --clai-bg:#ffffff;
  --clai-soft:#f8fafc;
  --clai-line:#e5e7eb;
  --clai-text:#111827;
  --clai-muted:#64748b;
  --clai-primary:#0f172a;
  --clai-primary-hover:#1e293b;
  --clai-radius:18px;
  --clai-shadow:0 18px 45px rgba(15,23,42,.07);
}
.clai-module{border:1px solid var(--clai-line);border-radius:var(--clai-radius);padding:18px;margin:18px 0;background:var(--clai-bg);box-shadow:var(--clai-shadow);color:var(--clai-text)}
.clai-module *{box-sizing:border-box}.clai-module h3{margin:0 0 4px;font-size:22px;line-height:1.25}.clai-module-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.clai-vocab-excerpt,.clai-dialogue-excerpt{margin:0;color:var(--clai-muted);line-height:1.55}.clai-form{display:grid;gap:10px;margin-bottom:12px}.clai-form input,.clai-form textarea,.clai-form select{width:100%;padding:11px 12px;border:1px solid #d1d5db;border-radius:12px;background:#fff}.clai-form textarea{min-height:100px}.clai-action,.clai-play-all{border:0;border-radius:12px;padding:10px 15px;cursor:pointer;background:var(--clai-primary);color:#fff;font-weight:700;line-height:1;transition:transform .16s ease,background .16s ease,box-shadow .16s ease}.clai-action:hover,.clai-play-all:hover{background:var(--clai-primary-hover);transform:translateY(-1px);box-shadow:0 10px 22px rgba(15,23,42,.16)}.clai-action:disabled,.clai-play-button:disabled,.clai-play-all:disabled{opacity:.65;cursor:wait;transform:none;box-shadow:none}.clai-output{background:var(--clai-soft);border-radius:14px;padding:14px;line-height:1.7}.clai-error{background:#fef2f2;color:#991b1b;border-radius:14px;padding:12px}.clai-handwriting-result{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}.clai-practice-card{border:1px solid var(--clai-line);border-radius:14px;padding:12px;text-align:center;background:#fafafa}.clai-practice-svg{width:100%;height:auto;color:var(--clai-text)}.clai-practice-card strong{display:block;font-size:22px}.clai-practice-card small{display:block;color:var(--clai-muted)}
.clai-vocab-table-wrap{overflow-x:auto;border:1px solid var(--clai-line);border-radius:16px;background:#fff}.clai-vocab-table{width:100%;border-collapse:separate;border-spacing:0;margin:0}.clai-vocab-table th,.clai-vocab-table td{border:0;border-bottom:1px solid var(--clai-line);padding:14px 12px;text-align:left;vertical-align:middle}.clai-vocab-table tbody tr:last-child td{border-bottom:0}.clai-vocab-table th{background:var(--clai-soft);color:#334155;font-size:13px;font-weight:800;letter-spacing:.02em}.clai-vocab-table tbody tr{transition:background .16s ease}.clai-vocab-table tbody tr:hover{background:#f8fafc}.clai-vocab-hanzi{white-space:nowrap;font-size:18px}.clai-vocab-hanzi strong{font-weight:800}.clai-vocab-meaning{line-height:1.55}.clai-vocab-meaning small,.clai-vocab-example small,.clai-dialogue-pinyin,.clai-dialogue-vi{color:var(--clai-muted);line-height:1.55}.clai-badge{display:inline-flex;align-items:center;justify-content:center;min-height:24px;padding:3px 9px;border:1px solid #dbe3ef;border-radius:999px;background:#f8fafc;color:#334155;font-size:12px;font-weight:700;white-space:nowrap}.clai-badge-level{min-width:30px}.clai-example-line,.clai-dialogue-zh{display:flex;align-items:center;gap:8px}.clai-example-line span,.clai-dialogue-zh span{line-height:1.6}.clai-icon-audio{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;min-width:34px;padding:0;margin-left:8px;border:0;border-radius:12px;background:#0f172a;color:#fff;line-height:1;font-size:15px;vertical-align:middle;cursor:pointer;transition:transform .16s ease,background .16s ease,box-shadow .16s ease}.clai-icon-audio:hover{background:#1e293b;transform:translateY(-1px);box-shadow:0 8px 18px rgba(15,23,42,.18)}.clai-example-line .clai-icon-audio,.clai-dialogue-zh .clai-icon-audio{margin-left:2px;flex:0 0 auto}.clai-icon-audio.is-playing{background:#0f766e}.clai-dialogue-turns{list-style:none;margin:0;padding:0;display:grid;gap:12px}.clai-dialogue-turn{border:1px solid var(--clai-line);border-radius:16px;padding:13px 14px;background:#fff}.clai-dialogue-head{display:flex;align-items:center;gap:8px;margin-bottom:5px}.clai-dialogue-head strong{display:inline-flex;border-radius:999px;background:#f1f5f9;color:#334155;padding:4px 10px;font-size:13px}.clai-dialogue-zh{font-size:1.08em;margin-top:4px;font-weight:650}.clai-sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media (max-width:760px){
.clai-module{padding:12px;border-radius:16px;margin:12px 0;box-shadow:0 8px 28px rgba(15,23,42,.06)}
.clai-module-header{display:grid;gap:10px;margin-bottom:12px}.clai-module h3{font-size:19px}.clai-vocab-excerpt{font-size:14px}
.clai-play-all{width:100%;padding:12px 14px;border-radius:12px;position:sticky;top:8px;z-index:5;box-shadow:0 8px 20px rgba(15,23,42,.14)}
.clai-vocab-table-wrap{border:0;overflow:visible;background:transparent}
.clai-vocab-table,.clai-vocab-table thead,.clai-vocab-table tbody,.clai-vocab-table tr,.clai-vocab-table th,.clai-vocab-table td{display:block;width:100%}
.clai-vocab-table thead{position:absolute;left:-9999px}.clai-vocab-table tr{position:relative;border:1px solid #e2e8f0;border-radius:18px;margin:0 0 12px;background:#fff;box-shadow:0 10px 24px rgba(15,23,42,.055);overflow:hidden}
.clai-vocab-table td{padding:8px 12px;border:0;border-bottom:1px solid #f1f5f9}.clai-vocab-table td:before{content:attr(data-label);display:block;margin-bottom:4px;color:#64748b;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}.clai-vocab-table td:last-child{border-bottom:0}
.clai-vocab-table td.clai-vocab-hanzi{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 14px 12px;background:linear-gradient(180deg,#f8fafc 0%,#fff 100%)}.clai-vocab-table td.clai-vocab-hanzi:before{display:none}.clai-vocab-hanzi strong{font-size:26px;line-height:1.1;letter-spacing:.02em}
.clai-vocab-table td[data-label="Pinyin"]{font-size:16px;font-weight:700;color:#0f172a;padding-top:10px}.clai-vocab-table td[data-label="Pinyin"]:before{content:"Pinyin"}
.clai-vocab-meaning{font-size:15px;line-height:1.6;background:#fff}.clai-vocab-meaning div{font-weight:650;color:#111827}.clai-vocab-meaning small{display:block;margin-top:4px;font-size:13px}
.clai-vocab-table td[data-label="Từ loại"],.clai-vocab-table td[data-label="Level"]{display:inline-flex;width:auto;max-width:48%;align-items:center;gap:8px;border-bottom:0;padding:8px 6px 8px 12px}.clai-vocab-table td[data-label="Level"]{padding-left:6px}.clai-vocab-table td[data-label="Từ loại"]:before,.clai-vocab-table td[data-label="Level"]:before{display:inline;margin:0;font-size:10px}
.clai-badge{min-height:26px;padding:4px 12px;background:#fff;border-color:#cbd5e1;color:#0f172a}.clai-vocab-example{clear:both;margin-top:2px;padding-top:10px!important;background:#fbfdff;border-top:1px solid #f1f5f9!important}
.clai-example-line{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;font-size:15px;font-weight:650}.clai-example-line span{min-width:0;line-height:1.55}.clai-vocab-example small{display:block;margin-top:5px;font-size:13px}
.clai-icon-audio{width:34px;height:34px;min-width:34px;border-radius:12px;margin-left:0;box-shadow:0 8px 18px rgba(15,23,42,.14)}.clai-example-line .clai-icon-audio,.clai-dialogue-zh .clai-icon-audio{margin-left:0;flex:0 0 auto}
}
@media (max-width:420px){.clai-module{padding:10px;border-left:0;border-right:0;border-radius:0;margin-left:-10px;margin-right:-10px}.clai-vocab-table tr{border-radius:16px;margin-bottom:10px}.clai-vocab-hanzi strong{font-size:24px}.clai-vocab-table td{padding-left:11px;padding-right:11px}.clai-vocab-table td[data-label="Từ loại"],.clai-vocab-table td[data-label="Level"]{max-width:100%;padding-top:6px;padding-bottom:6px}}

/* Smart handwriting / writing practice */
.clai-hanzi-actions{display:inline-flex;align-items:center;gap:8px;margin-left:8px;vertical-align:middle}.clai-writing-open{display:inline-flex;align-items:center;justify-content:center;gap:5px;height:34px;padding:0 10px;border:1px solid #cbd5e1;border-radius:12px;background:#fff;color:#0f172a;font-weight:800;font-size:13px;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background .16s ease}.clai-writing-open:hover{background:#f8fafc;transform:translateY(-1px);box-shadow:0 8px 18px rgba(15,23,42,.10)}.clai-inline-writing{display:block!important;width:100%!important;padding:0!important;border:0!important;background:#f8fafc!important}.clai-inline-writing:before{display:none!important}.clai-inline-writing .clai-handwriting{padding:12px}.clai-handwriting-result{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}.clai-writing-card{border:1px solid #e2e8f0;border-radius:18px;padding:14px;background:#fff;box-shadow:0 12px 28px rgba(15,23,42,.06)}.clai-writing-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:10px}.clai-writing-char{display:block;font-size:34px;line-height:1;color:#0f172a}.clai-writing-top small{display:block;color:#64748b;margin-top:4px;line-height:1.45}.clai-writing-source{display:inline-flex;border:1px solid #dbe3ef;border-radius:999px;padding:3px 8px;background:#f8fafc;color:#475569;font-size:11px;font-weight:800}.clai-writing-board{position:relative;aspect-ratio:1/1;border:1px solid #cbd5e1;border-radius:18px;overflow:hidden;background:#fff;touch-action:none}.clai-writing-grid{position:absolute;inset:0;background:linear-gradient(90deg,transparent calc(50% - .5px),#dbe3ef 50%,transparent calc(50% + .5px)),linear-gradient(0deg,transparent calc(50% - .5px),#dbe3ef 50%,transparent calc(50% + .5px)),linear-gradient(45deg,transparent calc(50% - .5px),#eef2f7 50%,transparent calc(50% + .5px)),linear-gradient(-45deg,transparent calc(50% - .5px),#eef2f7 50%,transparent calc(50% + .5px));display:flex;align-items:center;justify-content:center}.clai-writing-grid span{font-family:serif;font-size:clamp(110px,32vw,190px);line-height:1;opacity:.13;color:#0f172a;user-select:none}.clai-writing-card.hide-guide .clai-writing-grid span{opacity:0}.clai-writing-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:crosshair}.clai-writing-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}.clai-writing-tools button{border:1px solid #cbd5e1;border-radius:12px;background:#fff;color:#0f172a;padding:9px 8px;font-weight:800;cursor:pointer}.clai-writing-tools button:hover{background:#f8fafc}.clai-writing-feedback{margin:9px 0 0;color:#64748b;font-size:13px;line-height:1.5}.clai-writing-card.is-good{border-color:#99f6e4;box-shadow:0 14px 30px rgba(13,148,136,.10)}.clai-writing-card.is-good .clai-writing-feedback{color:#0f766e;font-weight:800}
@media (max-width:760px){.clai-hanzi-actions{margin-left:0}.clai-writing-open{height:34px;min-width:34px;padding:0 9px;box-shadow:0 8px 18px rgba(15,23,42,.08)}.clai-writing-label{display:none}.clai-handwriting-result{grid-template-columns:1fr}.clai-inline-writing .clai-handwriting{padding:10px}.clai-writing-card{border-radius:16px;padding:12px}.clai-writing-char{font-size:30px}.clai-writing-tools{gap:6px}.clai-writing-tools button{padding:9px 4px;font-size:12px}.clai-vocab-table td[data-label="Cấp độ"]{display:inline-flex;width:auto;max-width:48%;align-items:center;gap:8px;border-bottom:0;padding:8px 6px 8px 12px}.clai-vocab-table td[data-label="Cấp độ"]:before{display:inline;margin:0;font-size:10px}}

/* v0.5.1 Professional writing practice modal */
.clai-writing-lock{overflow:hidden}.clai-writing-modal{position:fixed;inset:0;z-index:99999;display:none}.clai-writing-modal.is-open{display:block}.clai-writing-backdrop{position:absolute;inset:0;background:rgba(15,23,42,.58);backdrop-filter:blur(8px)}.clai-writing-dialog{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(94vw,560px);max-height:92vh;overflow:hidden;border:1px solid rgba(226,232,240,.9);border-radius:28px;background:#fff;box-shadow:0 30px 90px rgba(15,23,42,.28)}.clai-writing-dialog-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;padding:22px 24px 16px;border-bottom:1px solid #eef2f7;background:linear-gradient(180deg,#fff,#f8fafc)}.clai-writing-dialog-head h3{margin:3px 0 4px;font-size:24px;line-height:1.15;color:#0f172a}.clai-writing-dialog-head p{margin:0;color:#64748b;font-size:14px;line-height:1.45}.clai-writing-kicker{display:inline-flex;border:1px solid #bfdbfe;border-radius:999px;padding:4px 10px;background:#eff6ff;color:#1d4ed8;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.04em}.clai-writing-close{width:40px;height:40px;border:1px solid #e2e8f0;border-radius:14px;background:#fff;color:#0f172a;font-size:26px;line-height:1;cursor:pointer;box-shadow:0 8px 18px rgba(15,23,42,.06)}.clai-writing-dialog-body{padding:18px 22px 24px;overflow:auto;max-height:calc(92vh - 112px);background:#f8fafc}.clai-writing-dialog .clai-handwriting-result{display:block}.clai-writing-dialog .clai-writing-card{max-width:430px;margin:0 auto;border-radius:26px;padding:18px;border:1px solid #dbeafe;box-shadow:0 24px 60px rgba(15,23,42,.10);background:#fff}.clai-writing-dialog .clai-writing-top{align-items:center;margin-bottom:14px}.clai-writing-dialog .clai-writing-char{font-size:52px;font-weight:900}.clai-writing-dialog .clai-writing-source{display:none}.clai-writing-dialog .clai-writing-board{border-radius:24px;border:1px solid #cbd5e1;background:#fff;box-shadow:inset 0 0 0 6px #f8fafc}.clai-writing-dialog .clai-writing-grid span{font-size:clamp(170px,42vw,260px);opacity:.12}.clai-writing-dialog .clai-writing-tools{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.clai-writing-dialog .clai-writing-tools button{border-radius:16px;padding:12px 10px;background:#fff;font-size:14px}.clai-writing-dialog .clai-writing-tools button[data-writing-tool="check"]{background:#0f172a;color:#fff;border-color:#0f172a}.clai-writing-dialog .clai-writing-feedback{min-height:22px;margin-top:12px;text-align:center;font-weight:700}.clai-writing-loading{display:grid;place-items:center;gap:8px;padding:40px 10px;color:#64748b;text-align:center}.clai-writing-loading span{width:34px;height:34px;border:3px solid #cbd5e1;border-top-color:#0f172a;border-radius:50%;animation:claiSpin .8s linear infinite}@keyframes claiSpin{to{transform:rotate(360deg)}}.clai-writing-open{border-color:#dbeafe;background:#eff6ff;color:#1e3a8a}.clai-writing-open:hover{background:#dbeafe}.clai-inline-writing-row{display:none!important}
@media(max-width:760px){.clai-writing-dialog{left:0;right:0;bottom:0;top:auto;transform:none;width:100%;max-height:94vh;border-radius:28px 28px 0 0}.clai-writing-dialog-head{padding:18px 18px 12px}.clai-writing-dialog-head h3{font-size:21px}.clai-writing-dialog-body{padding:14px 14px 20px;max-height:calc(94vh - 102px)}.clai-writing-dialog .clai-writing-card{padding:14px;border-radius:22px}.clai-writing-dialog .clai-writing-char{font-size:46px}.clai-writing-dialog .clai-writing-tools button{font-size:13px;padding:11px 6px}.clai-writing-label{display:inline}.clai-hanzi-actions{gap:6px}.clai-writing-open{height:36px;border-radius:999px;padding:0 11px}}

/* v0.5.2: Stroke order + smart writing hints */
.clai-hanzi-writer-target{position:absolute;inset:0;z-index:2;width:100%;height:100%;touch-action:none}
.clai-hanzi-writer-target svg{width:100%;height:100%;display:block}
.clai-writing-canvas{position:absolute;inset:0;z-index:3;background:transparent;touch-action:none}
.clai-writing-card.has-stroke-order .clai-writing-canvas{display:none}
/* v0.5.3: chống hiện 2 mẫu chữ. Khi HanziWriter đã tải, chỉ dùng outline/stroke của HanziWriter; không render thêm chữ nền lớn. */
.clai-writing-card.has-stroke-order .clai-writing-grid span{opacity:0!important}
.clai-writing-card.has-stroke-order.is-animating .clai-writing-grid span,
.clai-writing-card.has-stroke-order.is-quizzing .clai-writing-grid span{opacity:0!important}
.clai-writing-card.has-stroke-order.hide-guide .clai-writing-grid{opacity:.15}
.clai-writing-card.is-fallback-writing .clai-hanzi-writer-target{display:none}
.clai-writing-card.is-fallback-writing .clai-writing-canvas{display:block}
.clai-writing-tools{display:grid!important;grid-template-columns:repeat(5,minmax(0,1fr))!important;gap:9px!important}
.clai-writing-tools button[data-writing-tool="animate"],.clai-writing-tools button[data-writing-tool="hint"]{background:#0f172a!important;color:#fff!important;border-color:#0f172a!important;font-weight:900!important}
.clai-writing-tools button[data-writing-tool="hint"]{background:#2563eb!important;border-color:#2563eb!important}
.clai-writing-feedback[data-tone="good"]{color:#047857!important;background:#ecfdf5;border-color:#a7f3d0}
.clai-writing-feedback[data-tone="warn"]{color:#b45309!important;background:#fffbeb;border-color:#fde68a}
.clai-writing-feedback[data-tone="info"]{color:#1d4ed8!important;background:#eff6ff;border-color:#bfdbfe}
.clai-writing-feedback{border:1px solid transparent;border-radius:14px;padding:9px 10px;background:#f8fafc}
@media(max-width:760px){.clai-writing-tools{grid-template-columns:repeat(2,minmax(0,1fr))!important}.clai-writing-tools button[data-writing-tool="animate"],.clai-writing-tools button[data-writing-tool="hint"]{grid-column:auto}.clai-writing-tools button[data-writing-tool="check"]{grid-column:1/-1}}

/* v0.5.4.1: chỉnh bố cục modal tập viết - gọn hơn, không lộ thanh trượt ngang */
.clai-writing-slider{width:100%;max-width:100%;overflow:hidden;}
.clai-writing-slider-head{display:grid;grid-template-columns:minmax(86px,1fr) auto minmax(86px,1fr);align-items:center;gap:12px;margin:0 0 16px;}
.clai-writing-count{display:inline-flex;align-items:center;justify-content:center;min-width:76px;border:1px solid #dbe3ef;border-radius:999px;padding:8px 13px;background:#fff;color:#334155;font-size:13px;font-weight:900;white-space:nowrap;box-shadow:0 8px 18px rgba(15,23,42,.04);}
.clai-writing-nav{display:inline-flex;align-items:center;justify-content:center;border:1px solid #cbd5e1;border-radius:999px;background:#fff;color:#0f172a;padding:9px 14px;font-weight:900;cursor:pointer;box-shadow:0 8px 18px rgba(15,23,42,.06);transition:transform .16s ease,box-shadow .16s ease,background .16s ease,opacity .16s ease;white-space:nowrap;}
.clai-writing-nav[data-writing-nav="prev"]{justify-self:start;}
.clai-writing-nav[data-writing-nav="next"]{justify-self:end;}
.clai-writing-nav:hover:not(:disabled){background:#f8fafc;transform:translateY(-1px);box-shadow:0 12px 24px rgba(15,23,42,.10);}
.clai-writing-nav:disabled{opacity:.42;cursor:not-allowed;box-shadow:none;}
.clai-writing-track{display:flex!important;gap:0;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:0;margin:0;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.clai-writing-track::-webkit-scrollbar{display:none;}
.clai-writing-track .clai-writing-card{flex:0 0 100%;width:100%;scroll-snap-align:start;scroll-snap-stop:always;}
.clai-writing-dialog{width:min(94vw,620px);}
.clai-writing-dialog .clai-handwriting-result{display:block!important;}
.clai-writing-dialog .clai-writing-slider{max-width:500px;margin:0 auto;}
.clai-writing-dialog .clai-writing-track .clai-writing-card{max-width:none;margin:0;}
.clai-writing-dialog .clai-writing-board{max-width:430px;margin:0 auto;}
.clai-writing-dialog .clai-writing-tools{max-width:430px;margin-left:auto;margin-right:auto;}
.clai-writing-dialog .clai-writing-feedback{max-width:430px;margin-left:auto;margin-right:auto;}
@media (max-width:760px){.clai-writing-slider-head{grid-template-columns:1fr auto 1fr;gap:8px;margin-bottom:12px}.clai-writing-nav{padding:8px 10px;font-size:12px}.clai-writing-count{min-width:62px;padding:7px 9px;font-size:12px}.clai-writing-dialog{width:100%;}.clai-writing-dialog .clai-writing-slider{max-width:100%;}.clai-writing-dialog .clai-writing-board,.clai-writing-dialog .clai-writing-tools,.clai-writing-dialog .clai-writing-feedback{max-width:100%;}.clai-writing-track .clai-writing-card{flex-basis:100%}}

/* v0.5.4.1: compact modal layout - prevent clipped cards and browser horizontal scroll */
.clai-writing-lock,
body.clai-writing-lock{
  overflow:hidden!important;
}
.clai-writing-modal,
.clai-writing-modal *{
  box-sizing:border-box;
}
.clai-writing-dialog{
  width:min(92vw,590px)!important;
  max-height:min(92vh,820px)!important;
  display:flex!important;
  flex-direction:column!important;
  overflow:hidden!important;
}
.clai-writing-dialog-head{
  flex:0 0 auto!important;
  padding:18px 24px 14px!important;
}
.clai-writing-dialog-body{
  flex:1 1 auto!important;
  min-height:0!important;
  overflow-y:auto!important;
  overflow-x:hidden!important;
  padding:16px 18px 18px!important;
  scrollbar-gutter:stable;
}
.clai-writing-dialog .clai-writing-slider{
  width:100%!important;
  max-width:480px!important;
  margin:0 auto!important;
  overflow:hidden!important;
}
.clai-writing-slider-head{
  position:sticky;
  top:0;
  z-index:5;
  display:grid!important;
  grid-template-columns:minmax(92px,1fr) auto minmax(92px,1fr)!important;
  align-items:center!important;
  gap:10px!important;
  margin:0 0 14px!important;
  padding:2px 0 0!important;
  background:#f8fafc;
}
.clai-writing-track{
  width:100%!important;
  overflow-x:hidden!important;
  overflow-y:visible!important;
  scroll-snap-type:none!important;
}
.clai-writing-track .clai-writing-card{
  flex:0 0 100%!important;
  min-width:100%!important;
  max-width:100%!important;
  margin:0!important;
}
.clai-writing-dialog .clai-writing-card{
  padding:14px!important;
  border-radius:22px!important;
}
.clai-writing-dialog .clai-writing-top{
  margin-bottom:10px!important;
}
.clai-writing-dialog .clai-writing-char{
  font-size:46px!important;
}
.clai-writing-dialog .clai-writing-board{
  width:min(100%,390px)!important;
  max-width:390px!important;
  margin:0 auto!important;
  border-radius:20px!important;
}
.clai-writing-dialog .clai-writing-grid span{
  font-size:clamp(150px,36vw,230px)!important;
}
.clai-writing-dialog .clai-writing-tools{
  width:min(100%,390px)!important;
  max-width:390px!important;
  margin:12px auto 0!important;
  grid-template-columns:repeat(5,minmax(0,1fr))!important;
  gap:8px!important;
}
.clai-writing-dialog .clai-writing-tools button{
  min-height:52px!important;
  padding:10px 6px!important;
  border-radius:14px!important;
  font-size:13px!important;
  line-height:1.15!important;
}
.clai-writing-dialog .clai-writing-feedback{
  width:min(100%,390px)!important;
  max-width:390px!important;
  margin:10px auto 0!important;
  font-size:13px!important;
  line-height:1.35!important;
}
@media (max-height:820px){
  .clai-writing-dialog{max-height:88vh!important;}
  .clai-writing-dialog-head{padding:14px 24px 10px!important;}
  .clai-writing-dialog-head h3{font-size:22px!important;margin:2px 0 3px!important;}
  .clai-writing-dialog-head p{font-size:13px!important;line-height:1.35!important;}
  .clai-writing-dialog-body{padding:14px 18px 14px!important;}
  .clai-writing-dialog .clai-writing-board{width:min(100%,350px)!important;max-width:350px!important;}
  .clai-writing-dialog .clai-writing-tools,
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,350px)!important;max-width:350px!important;}
  .clai-writing-dialog .clai-writing-tools button{min-height:48px!important;font-size:12px!important;}
}
@media (max-width:760px){
  .clai-writing-dialog{width:100%!important;max-height:94vh!important;}
  .clai-writing-dialog-body{padding:12px 12px 14px!important;}
  .clai-writing-slider-head{grid-template-columns:minmax(80px,1fr) auto minmax(80px,1fr)!important;gap:8px!important;}
  .clai-writing-nav{padding:8px 10px!important;font-size:12px!important;}
  .clai-writing-count{min-width:60px!important;padding:7px 9px!important;font-size:12px!important;}
  .clai-writing-dialog .clai-writing-tools{grid-template-columns:repeat(5,minmax(0,1fr))!important;gap:6px!important;}
  .clai-writing-dialog .clai-writing-tools button{font-size:12px!important;padding:8px 4px!important;min-height:48px!important;}
}

/* v0.5.4.2: modal fit screen better + hide prev/next when only one character */
.clai-writing-dialog{
  width:min(92vw,560px)!important;
  max-height:90vh!important;
}
.clai-writing-dialog-head{
  padding:16px 22px 10px!important;
}
.clai-writing-dialog-head h3{
  font-size:22px!important;
  margin:2px 0 3px!important;
}
.clai-writing-dialog-head p{
  font-size:13px!important;
  line-height:1.32!important;
}
.clai-writing-dialog-body{
  padding:12px 14px 12px!important;
}
.clai-writing-dialog .clai-writing-slider{
  max-width:440px!important;
}
.clai-writing-slider-head{
  margin:0 0 10px!important;
  padding:0!important;
}
.clai-writing-dialog .clai-writing-card{
  padding:12px!important;
  border-radius:20px!important;
}
.clai-writing-dialog .clai-writing-top{
  margin-bottom:8px!important;
}
.clai-writing-dialog .clai-writing-char{
  font-size:42px!important;
}
.clai-writing-dialog .clai-writing-top small{
  font-size:13px!important;
  line-height:1.25!important;
}
.clai-writing-dialog .clai-writing-board{
  width:min(100%,340px)!important;
  max-width:340px!important;
  border-radius:18px!important;
}
.clai-writing-dialog .clai-writing-grid span{
  font-size:clamp(135px,32vw,205px)!important;
}
.clai-writing-dialog .clai-writing-tools{
  width:min(100%,340px)!important;
  max-width:340px!important;
  margin:9px auto 0!important;
  gap:6px!important;
}
.clai-writing-dialog .clai-writing-tools button{
  min-height:44px!important;
  padding:8px 5px!important;
  border-radius:13px!important;
  font-size:12px!important;
  line-height:1.12!important;
}
.clai-writing-dialog .clai-writing-feedback{
  width:min(100%,340px)!important;
  max-width:340px!important;
  margin:8px auto 0!important;
  padding:8px 9px!important;
  font-size:12px!important;
  line-height:1.25!important;
}
.clai-writing-slider.is-single .clai-writing-nav{
  display:none!important;
}
.clai-writing-slider.is-single .clai-writing-slider-head{
  grid-template-columns:1fr!important;
  justify-items:center!important;
  margin-bottom:8px!important;
}
@media (max-height:820px){
  .clai-writing-dialog{max-height:90vh!important;}
  .clai-writing-dialog-head{padding:12px 22px 8px!important;}
  .clai-writing-dialog-body{padding:10px 12px 10px!important;}
  .clai-writing-dialog .clai-writing-slider{max-width:410px!important;}
  .clai-writing-dialog .clai-writing-board{width:min(100%,300px)!important;max-width:300px!important;}
  .clai-writing-dialog .clai-writing-tools,
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,300px)!important;max-width:300px!important;}
  .clai-writing-dialog .clai-writing-char{font-size:38px!important;}
  .clai-writing-dialog .clai-writing-top small{font-size:12px!important;}
  .clai-writing-dialog .clai-writing-tools button{min-height:40px!important;font-size:11px!important;padding:7px 4px!important;}
  .clai-writing-dialog .clai-writing-feedback{font-size:11px!important;padding:7px 8px!important;}
}
@media (max-height:700px){
  .clai-writing-dialog .clai-writing-board{width:min(100%,260px)!important;max-width:260px!important;}
  .clai-writing-dialog .clai-writing-tools,
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,260px)!important;max-width:260px!important;}
}


/* v0.5.4.3: body-only writing modal, mobile-safe */
.clai-writing-dialog-head{display:none!important;}
.clai-writing-dialog{
  width:min(94vw,540px)!important;
  max-height:92vh!important;
  overflow:hidden!important;
}
.clai-writing-dialog-body{
  max-height:92vh!important;
  height:92vh!important;
  padding:18px 14px 14px!important;
  overflow-y:auto!important;
  overflow-x:hidden!important;
  box-sizing:border-box!important;
}
.clai-writing-close-floating{
  position:absolute!important;
  top:10px!important;
  right:10px!important;
  z-index:5!important;
  width:38px!important;
  height:38px!important;
  border-radius:14px!important;
}
.clai-writing-dialog .clai-writing-slider{max-width:430px!important;margin:0 auto!important;}
.clai-writing-slider.is-single .clai-writing-slider-head{display:none!important;}
.clai-writing-dialog .clai-writing-card{padding:12px!important;}
.clai-writing-dialog .clai-writing-board{width:min(100%,330px)!important;max-width:330px!important;}
.clai-writing-dialog .clai-writing-tools,
.clai-writing-dialog .clai-writing-feedback{width:min(100%,330px)!important;max-width:330px!important;}
@media (max-width:760px){
  .clai-writing-dialog{
    left:50%!important;right:auto!important;bottom:auto!important;top:50%!important;
    transform:translate(-50%,-50%)!important;
    width:min(94vw,430px)!important;
    max-height:92vh!important;
    border-radius:24px!important;
  }
  .clai-writing-dialog-body{
    height:92vh!important;
    max-height:92vh!important;
    padding:14px 10px 12px!important;
  }
  .clai-writing-close-floating{top:8px!important;right:8px!important;width:34px!important;height:34px!important;font-size:22px!important;}
  .clai-writing-dialog .clai-writing-slider{max-width:100%!important;padding-top:0!important;}
  .clai-writing-dialog .clai-writing-card{padding:10px!important;border-radius:18px!important;}
  .clai-writing-dialog .clai-writing-char{font-size:38px!important;}
  .clai-writing-dialog .clai-writing-top{margin-bottom:6px!important;padding-right:34px!important;}
  .clai-writing-dialog .clai-writing-top small{font-size:12px!important;line-height:1.2!important;}
  .clai-writing-dialog .clai-writing-board{width:min(100%,300px)!important;max-width:300px!important;}
  .clai-writing-dialog .clai-writing-grid span{font-size:clamp(120px,48vw,185px)!important;}
  .clai-writing-dialog .clai-writing-tools{grid-template-columns:repeat(5,minmax(0,1fr))!important;gap:5px!important;width:min(100%,300px)!important;max-width:300px!important;}
  .clai-writing-dialog .clai-writing-tools button{min-height:40px!important;padding:6px 3px!important;font-size:10.5px!important;border-radius:11px!important;}
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,300px)!important;max-width:300px!important;font-size:11px!important;padding:7px 8px!important;}
}
@media (max-height:700px){
  .clai-writing-dialog{max-height:94vh!important;}
  .clai-writing-dialog-body{height:94vh!important;max-height:94vh!important;padding-top:10px!important;}
  .clai-writing-dialog .clai-writing-board{width:min(100%,250px)!important;max-width:250px!important;}
  .clai-writing-dialog .clai-writing-tools,
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,250px)!important;max-width:250px!important;}
  .clai-writing-dialog .clai-writing-char{font-size:34px!important;}
  .clai-writing-dialog .clai-writing-top small{font-size:11px!important;}
}

/* v0.5.4.4: final body-only responsive writing modal */
.clai-writing-dialog-head{display:none!important;}
.clai-writing-dialog{
  width:min(94vw,520px)!important;
  height:auto!important;
  max-height:min(96dvh,760px)!important;
  overflow:hidden!important;
  border-radius:26px!important;
}
.clai-writing-dialog-body{
  height:auto!important;
  min-height:0!important;
  max-height:min(96dvh,760px)!important;
  padding:46px 14px 14px!important;
  overflow-y:auto!important;
  overflow-x:hidden!important;
  background:#f8fafc!important;
  box-sizing:border-box!important;
}
.clai-writing-close-floating{
  position:absolute!important;
  top:10px!important;
  right:10px!important;
  z-index:20!important;
  width:36px!important;
  height:36px!important;
  display:inline-flex!important;
  align-items:center!important;
  justify-content:center!important;
}
.clai-writing-dialog .clai-writing-slider{
  width:100%!important;
  max-width:430px!important;
  margin:0 auto!important;
}
.clai-writing-slider.is-single .clai-writing-slider-head{display:none!important;}
.clai-writing-slider-head{
  position:sticky!important;
  top:0!important;
  z-index:10!important;
  display:grid!important;
  grid-template-columns:1fr auto 1fr!important;
  align-items:center!important;
  gap:8px!important;
  margin:-38px 0 12px!important;
  padding:0 44px 0 0!important;
  background:#f8fafc!important;
}
.clai-writing-nav{min-height:36px!important;padding:8px 12px!important;border-radius:999px!important;}
.clai-writing-count{min-width:64px!important;text-align:center!important;}
.clai-writing-dialog .clai-writing-track{
  overflow-x:hidden!important;
  overflow-y:visible!important;
  scroll-snap-type:x mandatory!important;
}
.clai-writing-dialog .clai-writing-card{
  padding:12px!important;
  border-radius:20px!important;
  box-sizing:border-box!important;
}
.clai-writing-dialog .clai-writing-top{margin-bottom:8px!important;}
.clai-writing-dialog .clai-writing-char{font-size:42px!important;line-height:1!important;}
.clai-writing-dialog .clai-writing-top small{font-size:13px!important;line-height:1.25!important;}
.clai-writing-dialog .clai-writing-board{
  width:min(100%,320px)!important;
  max-width:320px!important;
  aspect-ratio:1/1!important;
  margin:0 auto!important;
}
.clai-writing-dialog .clai-writing-grid span{font-size:clamp(130px,34vw,205px)!important;}
.clai-writing-dialog .clai-writing-tools,
.clai-writing-dialog .clai-writing-feedback{
  width:min(100%,320px)!important;
  max-width:320px!important;
  margin-left:auto!important;
  margin-right:auto!important;
}
.clai-writing-dialog .clai-writing-tools{
  display:grid!important;
  grid-template-columns:repeat(5,minmax(0,1fr))!important;
  gap:6px!important;
  margin-top:10px!important;
}
.clai-writing-dialog .clai-writing-tools button{
  min-height:44px!important;
  padding:7px 5px!important;
  border-radius:12px!important;
  font-size:11.5px!important;
  line-height:1.15!important;
}
.clai-writing-dialog .clai-writing-feedback{
  margin-top:8px!important;
  padding:8px 10px!important;
  font-size:12px!important;
  line-height:1.25!important;
}
@media (max-width:760px){
  .clai-writing-dialog{
    left:50%!important;
    right:auto!important;
    top:50%!important;
    bottom:auto!important;
    transform:translate(-50%,-50%)!important;
    width:min(96vw,430px)!important;
    max-height:96dvh!important;
    border-radius:22px!important;
  }
  .clai-writing-dialog-body{
    max-height:96dvh!important;
    padding:44px 10px 12px!important;
  }
  .clai-writing-slider-head{margin:-36px 0 10px!important;padding-right:40px!important;}
  .clai-writing-nav{min-height:34px!important;padding:7px 10px!important;font-size:12px!important;}
  .clai-writing-count{min-width:56px!important;font-size:12px!important;}
  .clai-writing-close-floating{top:8px!important;right:8px!important;width:34px!important;height:34px!important;font-size:22px!important;}
  .clai-writing-dialog .clai-writing-slider{max-width:100%!important;}
  .clai-writing-dialog .clai-writing-card{padding:10px!important;border-radius:18px!important;}
  .clai-writing-dialog .clai-writing-char{font-size:36px!important;}
  .clai-writing-dialog .clai-writing-top{margin-bottom:6px!important;}
  .clai-writing-dialog .clai-writing-top small{font-size:12px!important;line-height:1.2!important;}
  .clai-writing-dialog .clai-writing-board{width:min(100%,290px)!important;max-width:290px!important;}
  .clai-writing-dialog .clai-writing-grid span{font-size:clamp(118px,48vw,178px)!important;}
  .clai-writing-dialog .clai-writing-tools{width:min(100%,290px)!important;max-width:290px!important;gap:5px!important;margin-top:8px!important;}
  .clai-writing-dialog .clai-writing-tools button{min-height:40px!important;padding:6px 3px!important;font-size:10.5px!important;border-radius:11px!important;}
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,290px)!important;max-width:290px!important;font-size:11px!important;padding:7px 8px!important;margin-top:7px!important;}
}
@media (max-width:380px),(max-height:700px){
  .clai-writing-dialog{max-height:97dvh!important;}
  .clai-writing-dialog-body{max-height:97dvh!important;padding:42px 8px 10px!important;}
  .clai-writing-slider-head{margin:-34px 0 8px!important;}
  .clai-writing-dialog .clai-writing-card{padding:8px!important;}
  .clai-writing-dialog .clai-writing-char{font-size:32px!important;}
  .clai-writing-dialog .clai-writing-board{width:min(100%,250px)!important;max-width:250px!important;}
  .clai-writing-dialog .clai-writing-tools,
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,250px)!important;max-width:250px!important;}
  .clai-writing-dialog .clai-writing-tools{gap:4px!important;}
  .clai-writing-dialog .clai-writing-tools button{min-height:38px!important;font-size:10px!important;padding:5px 2px!important;}
  .clai-writing-dialog .clai-writing-feedback{font-size:10.5px!important;}
}
@media (max-width:340px){
  .clai-writing-dialog .clai-writing-board{width:min(100%,225px)!important;max-width:225px!important;}
  .clai-writing-dialog .clai-writing-tools,
  .clai-writing-dialog .clai-writing-feedback{width:min(100%,225px)!important;max-width:225px!important;}
}

/* v0.5.4.5: UX/UI polish and accessibility fixes */
.clai-writing-modal{position:fixed!important;inset:0!important;z-index:999999!important;display:none;align-items:center;justify-content:center;padding:14px;}
.clai-writing-modal.is-open{display:flex!important;}
.clai-writing-backdrop{position:absolute!important;inset:0!important;background:rgba(15,23,42,.56)!important;backdrop-filter:blur(3px);}
.clai-writing-dialog{position:relative!important;left:auto!important;top:auto!important;right:auto!important;bottom:auto!important;transform:none!important;margin:auto!important;box-shadow:0 24px 70px rgba(15,23,42,.28)!important;}
.clai-writing-dialog-body:focus{outline:none;}
.clai-writing-track{overscroll-behavior-x:contain;}
.clai-writing-track .clai-writing-card[aria-hidden="true"]{visibility:hidden;pointer-events:none;}
.clai-writing-tools button:focus-visible,.clai-writing-nav:focus-visible,.clai-writing-close-floating:focus-visible,.clai-writing-open:focus-visible{outline:3px solid rgba(37,99,235,.32)!important;outline-offset:2px!important;}
.clai-writing-loading{display:grid;place-items:center;min-height:240px;text-align:center;gap:8px;color:#334155;}
.clai-writing-loading span{width:34px;height:34px;border:3px solid #dbe4f0;border-top-color:#2563eb;border-radius:50%;animation:clai-writing-spin .8s linear infinite;}
@keyframes clai-writing-spin{to{transform:rotate(360deg)}}
@media (max-width:760px){.clai-writing-modal{padding:8px!important;align-items:center!important;justify-content:center!important}.clai-writing-dialog{width:min(96vw,430px)!important;max-height:96dvh!important}}


@media (max-width:560px){
.clai-writing-dialog{width:min(98vw,500px)!important;border-radius:22px!important}
.clai-writing-dialog-body{padding:14px!important}
.clai-writing-dialog .clai-writing-card{max-width:100%!important;padding:14px!important;border-radius:18px!important}
.clai-writing-dialog .clai-writing-tools{grid-template-columns:repeat(2,1fr)!important;gap:8px!important}
.clai-writing-dialog .clai-writing-tools button[data-writing-tool="check"]{grid-column:1/-1!important}
.clai-writing-dialog .clai-writing-grid span{font-size:clamp(120px,38vw,180px)!important}
.clai-writing-close{width:36px!important;height:36px!important;font-size:22px!important}
}

/* v0.5.4.9: viết tay đúng luồng nút mới */
.clai-writing-tools button[hidden]{display:none!important;}
.clai-writing-tools button:disabled{opacity:.45!important;cursor:not-allowed!important;box-shadow:none!important;transform:none!important;}
.clai-writing-card.has-stroke-order .clai-writing-canvas{display:none!important;}
.clai-writing-card.has-stroke-order.is-practicing .clai-writing-canvas{display:block!important;z-index:4!important;}
.clai-writing-card.has-stroke-order.is-practicing .clai-hanzi-writer-target{z-index:2!important;pointer-events:none!important;}
.clai-writing-card.is-animating .clai-writing-canvas{pointer-events:none!important;}
.clai-writing-card.is-practicing .clai-writing-canvas{cursor:crosshair;}
.clai-writing-dialog .clai-writing-tools{grid-template-columns:repeat(5,minmax(0,1fr))!important;}
@media(max-width:760px){.clai-writing-dialog .clai-writing-tools{grid-template-columns:repeat(2,minmax(0,1fr))!important}.clai-writing-dialog .clai-writing-tools button[data-writing-tool="restart"]{grid-column:1/-1}}

/* v0.5.5.3: chia nút tập viết thành 2 hàng + con trỏ đầu bút lông nét đẹp hơn */
.clai-writing-tools,
.clai-writing-dialog .clai-writing-tools{
  display:grid!important;
  grid-template-columns:repeat(6,minmax(0,1fr))!important;
  gap:8px!important;
}
.clai-writing-tools button[data-writing-tool="animate"],
.clai-writing-tools button[data-writing-tool="practice"]{
  grid-column:span 3!important;
}
.clai-writing-tools button[data-writing-tool="hint"],
.clai-writing-tools button[data-writing-tool="clear"],
.clai-writing-tools button[data-writing-tool="restart"]{
  grid-column:span 2!important;
}
.clai-writing-card.is-practicing .clai-writing-canvas,
.clai-writing-card.is-writing .clai-writing-canvas{
  cursor:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2232%22%20height%3D%2232%22%20viewBox%3D%220%200%2032%2032%22%3E%3Cpath%20d%3D%22M4.5%2028.4c2.9-.7%205.1-1.8%206.8-3.6l2.3%202.3c-1.8%201.7-4.3%202.7-9.1%201.3z%22%20fill%3D%22%23020617%22%20opacity%3D%22.28%22%2F%3E%3Cpath%20d%3D%22M5.1%2027.1c.8-3.9%202.3-7%204.7-9.5l5.1%205.1c-2.5%202.4-5.6%203.9-9.8%204.4z%22%20fill%3D%22%230f172a%22%2F%3E%3Cpath%20d%3D%22M6.7%2025.3c1-2.5%202.2-4.5%203.8-6.1l2.8%202.8c-1.6%201.5-3.7%202.6-6.6%203.3z%22%20fill%3D%22%23334155%22%2F%3E%3Cpath%20d%3D%22M5.1%2027.1c.25-1.25.58-2.4%201-3.45%201.05.85%202.2%201.7%203.35%202.35-1.28.5-2.72.86-4.35%201.1z%22%20fill%3D%22%23020617%22%2F%3E%3Cpath%20d%3D%22M9.8%2017.6l3.1-3.1%205.3%205.3-3.3%202.9z%22%20fill%3D%22%23f59e0b%22%2F%3E%3Cpath%20d%3D%22M12.4%2015.1l1.2-1.2c.62-.62%201.63-.62%202.25%200l3.8%203.8c.62.62.62%201.63%200%202.25l-1.2%201.2z%22%20fill%3D%22%23b45309%22%2F%3E%3Cpath%20d%3D%22M15%2013.3L23.1%205.2c.95-.95%202.5-.95%203.45%200l.25.25c.95.95.95%202.5%200%203.45l-8.1%208.1z%22%20fill%3D%22%237c2d12%22%2F%3E%3Cpath%20d%3D%22M16.7%2013.7l7.15-7.15c.33-.33.86-.33%201.19%200l.38.38c.33.33.33.86%200%201.19l-7.15%207.15z%22%20fill%3D%22%2392400e%22%2F%3E%3Cpath%20d%3D%22M5.1%2027.1l1.15-3.4%202.35%202.35z%22%20fill%3D%22%23ffffff%22%20opacity%3D%22.72%22%2F%3E%3Cpath%20d%3D%22M9.8%2017.6l5.1%205.1%22%20stroke%3D%22%23fff7ed%22%20stroke-width%3D%221%22%20stroke-linecap%3D%22round%22%20opacity%3D%22.55%22%2F%3E%3C%2Fsvg%3E") 5 27, crosshair!important;
}
@media(max-width:760px){
  .clai-writing-tools,
  .clai-writing-dialog .clai-writing-tools{
    grid-template-columns:repeat(6,minmax(0,1fr))!important;
  }
  .clai-writing-tools button[data-writing-tool="restart"]{
    grid-column:span 2!important;
  }
}

/* v0.5.6: real smart handwriting engine */
.clai-writing-card.has-smart-engine .clai-writing-board{border-color:#93c5fd!important;box-shadow:inset 0 0 0 6px #eff6ff,0 12px 28px rgba(37,99,235,.08)!important}
.clai-writing-card.has-smart-engine .clai-writing-source::before{content:'AI ';}
.clai-writing-card.is-quizzing .clai-writing-feedback{background:#eff6ff!important;border-color:#bfdbfe!important;color:#1d4ed8!important}
.clai-writing-card.is-good .clai-writing-feedback{background:#ecfdf5!important;border-color:#a7f3d0!important;color:#047857!important}
.clai-writing-tools button[data-writing-tool="practice"]{background:#16a34a!important;border-color:#16a34a!important;color:#fff!important;font-weight:900!important}

/* v0.5.6.7: Pronunciation initials/finals with audio */
.clai-pronunciation{margin:28px 0;font-family:inherit;color:#0f172a}.clai-pronunciation *{box-sizing:border-box}.clai-pronunciation-hero{border:1px solid #e2e8f0;background:linear-gradient(135deg,#f8fafc,#eef6ff);border-radius:28px;padding:28px;margin-bottom:22px;box-shadow:0 18px 45px rgba(15,23,42,.06)}.clai-pronunciation-hero .clai-kicker{margin:0 0 8px;color:#2563eb;font-weight:900;text-transform:uppercase;letter-spacing:.08em;font-size:12px}.clai-pronunciation-hero h2{font-size:clamp(28px,4vw,44px);line-height:1.12;margin:0 0 10px}.clai-pronunciation-hero p{margin:0;color:#475569;font-size:16px;line-height:1.7;max-width:820px}.clai-pronunciation-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.clai-pronunciation-links a{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:1px solid #c7d2fe;background:#fff;color:#1d4ed8;border-radius:999px;padding:10px 14px;font-weight:800}.clai-pronunciation-section{border:1px solid #e2e8f0;background:#fff;border-radius:26px;padding:20px;margin:18px 0;box-shadow:0 16px 38px rgba(15,23,42,.05)}.clai-section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}.clai-section-head h3{font-size:26px;line-height:1.25;margin:0 0 6px}.clai-section-head p{margin:0;color:#64748b;line-height:1.6}.clai-pronunciation .clai-play-all{border:0;background:#0f172a;color:#fff;border-radius:999px;padding:11px 16px;font-weight:900;cursor:pointer;white-space:nowrap;box-shadow:0 10px 22px rgba(15,23,42,.16)}.clai-pronunciation-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}.clai-pron-card{border:1px solid #e2e8f0;border-radius:22px;background:#f8fafc;padding:16px;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.clai-pron-card:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(15,23,42,.08);border-color:#bfdbfe}.clai-pron-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.clai-pron-symbol{font-size:34px;line-height:1;color:#0f172a}.clai-pron-pinyin{margin-top:8px;color:#2563eb;font-weight:900;font-size:18px}.clai-pron-group{display:inline-flex;margin-top:10px;border:1px solid #dbeafe;background:#eff6ff;color:#1e40af;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}.clai-pron-tip{min-height:44px;color:#475569;line-height:1.55;margin:12px 0 0;font-size:14px}.clai-pron-example{margin-top:12px;border-top:1px dashed #cbd5e1;padding-top:10px;display:grid;gap:3px;color:#64748b;font-size:13px}.clai-pron-example .zh{font-size:17px;color:#0f172a;font-weight:900}.clai-pronunciation .clai-icon-audio{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:0;border-radius:50%;background:#0f172a;color:#fff;cursor:pointer;box-shadow:0 10px 20px rgba(15,23,42,.18)}.clai-pronunciation .clai-icon-audio.is-playing{animation:claiPronPulse 1s infinite}.clai-pronunciation .clai-icon-audio:disabled,.clai-pronunciation .clai-play-all:disabled{opacity:.65;cursor:wait}@keyframes claiPronPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}.clai-admin-pronunciation .clai-pronunciation{max-width:1280px}.clai-pronunciation-page .clai-pronunciation-wrap{max-width:1120px;margin:0 auto;padding:28px 18px}@media(max-width:760px){.clai-pronunciation-hero{padding:20px;border-radius:22px}.clai-pronunciation-section{padding:14px;border-radius:22px}.clai-section-head{display:block}.clai-pronunciation .clai-play-all{margin-top:12px;width:100%}.clai-pronunciation-grid{grid-template-columns:1fr}.clai-pron-tip{min-height:0}}

/* v0.5.6.9: Analysis module SEO page + structured result */
.clai-standalone-page .clai-page-wrap{max-width:980px;margin:0 auto;padding:48px 18px}.clai-lead{font-size:1.08rem;color:#475569;margin-bottom:24px}.clai-analysis-tool textarea{width:100%;min-height:110px}.clai-inline-controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:12px}.clai-check{display:inline-flex;gap:8px;align-items:center;color:#334155}.clai-analysis-result{margin-top:18px}.clai-analysis-hero{background:#f8fafc;border:1px solid #e2e8f0;border-radius:18px;padding:18px;margin-bottom:18px}.clai-analysis-sentence{display:flex;gap:12px;align-items:center;font-size:1.35rem;margin:10px 0}.clai-table-wrap{overflow-x:auto;border:1px solid #e2e8f0;border-radius:16px}.clai-analysis-table{width:100%;border-collapse:collapse;background:#fff}.clai-analysis-table th,.clai-analysis-table td{padding:12px;border-bottom:1px solid #e2e8f0;text-align:left;vertical-align:top}.clai-analysis-table th{background:#f8fafc;color:#0f172a}.clai-pill{display:inline-block;background:#eef2ff;color:#1e3a8a;border-radius:999px;padding:4px 9px;font-size:.82rem}.clai-analysis-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.clai-card{border:1px solid #e2e8f0;border-radius:16px;padding:14px;background:#fff}.clai-card h4{margin:0 0 8px}.clai-card code{display:inline-block;background:#f1f5f9;border-radius:8px;padding:5px 8px;margin-bottom:8px}.clai-analysis-examples{display:grid;gap:10px}.clai-example{border:1px solid #e2e8f0;border-radius:14px;padding:12px;background:#fff;display:grid;gap:4px}.clai-example strong{font-size:1.15rem}.clai-saved-link a{display:inline-flex;background:#0f172a;color:#fff;border-radius:999px;padding:9px 14px;text-decoration:none}.clai-muted{color:#64748b}

/* v0.5.7.3 deep vocabulary analysis */
.clai-analysis-result .clai-big-hanzi{font-size:2rem;line-height:1;color:#e3342f;margin-right:.35rem}.clai-sense-list{display:grid;gap:1rem;margin:1rem 0}.clai-sense-card{border-left:4px solid #2b6cb0}.clai-sense-number{display:inline-flex;align-items:center;justify-content:center;width:1.7rem;height:1.7rem;border-radius:999px;background:#2563eb;color:#fff;font-size:.9rem;margin-right:.35rem}.clai-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin:1rem 0}.clai-related-list{list-style:none;margin:0;padding:0}.clai-related-list li{padding:.65rem 0;border-bottom:1px solid rgba(15,23,42,.08)}.clai-related-list li:last-child{border-bottom:0}.clai-related-list small{color:#64748b}.clai-related-list em{display:block;color:#64748b;font-style:normal;margin-top:.2rem}.clai-character-cards{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.clai-character-card p{margin:.35rem 0}.clai-analysis-result h3{margin-top:1.6rem}

/* v0.9.2.0: AI-native pedagogy blocks */
.clai-learning-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin:12px 0 18px}
.clai-memory-card{background:linear-gradient(135deg,#fff7ed 0%,#ffffff 55%);border-color:#fed7aa!important}
.clai-tone-card{background:linear-gradient(135deg,#eff6ff 0%,#ffffff 55%);border-color:#bfdbfe!important}
.clai-recall-card{background:linear-gradient(135deg,#f5f3ff 0%,#ffffff 55%);border-color:#ddd6fe!important}
.clai-flow-card{background:linear-gradient(135deg,#ecfdf5 0%,#ffffff 55%);border-color:#bbf7d0!important}
.clai-recall-item{border:1px solid #e5e7eb;border-radius:14px;padding:10px 12px;margin:8px 0;background:#fff}
.clai-recall-item summary{cursor:pointer;font-weight:800;color:#0f172a;line-height:1.45}
.clai-recall-item p{margin:8px 0 0;color:#334155;line-height:1.55}
.clai-flow-list{margin:0;padding-left:20px;display:grid;gap:10px}.clai-flow-list li{line-height:1.55}.clai-flow-list b{color:#0f172a}.clai-flow-list span{color:#475569}
.clai-recommendation-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:12px 0 18px}.clai-recommend-card{transition:transform .16s ease,box-shadow .16s ease}.clai-recommend-card:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(15,23,42,.10)}.clai-recommend-card h4{margin:0 0 6px;font-size:18px}.clai-recommend-card h4 small{display:inline-block;color:#64748b;font-size:13px;margin-left:6px}.clai-character-card .clai-big-hanzi{color:#ef4444}.clai-analysis-result h3{margin-top:24px}.clai-analysis-result .clai-card h4{margin-top:0}.clai-analysis-mistakes li{margin-bottom:7px;line-height:1.55}
@media(max-width:760px){.clai-learning-grid,.clai-recommendation-grid{grid-template-columns:1fr}.clai-recall-item{padding:11px}.clai-analysis-result h3{font-size:20px}}

/* v0.9.2.0: AI-native pedagogy blocks */
.clai-learning-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin:12px 0 18px}
.clai-memory-card{background:linear-gradient(135deg,#fff7ed 0%,#ffffff 55%);border-color:#fed7aa!important}
.clai-tone-card{background:linear-gradient(135deg,#eff6ff 0%,#ffffff 55%);border-color:#bfdbfe!important}
.clai-recall-card{background:linear-gradient(135deg,#f5f3ff 0%,#ffffff 55%);border-color:#ddd6fe!important}
.clai-flow-card{background:linear-gradient(135deg,#ecfdf5 0%,#ffffff 55%);border-color:#bbf7d0!important}
.clai-recall-item{border:1px solid #e5e7eb;border-radius:14px;padding:10px 12px;margin:8px 0;background:#fff}
.clai-recall-item summary{cursor:pointer;font-weight:800;color:#0f172a;line-height:1.45}
.clai-recall-item p{margin:8px 0 0;color:#334155;line-height:1.55}
.clai-flow-list{margin:0;padding-left:20px;display:grid;gap:10px}.clai-flow-list li{line-height:1.55}.clai-flow-list b{color:#0f172a}.clai-flow-list span{color:#475569}
.clai-recommendation-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:12px 0 18px}.clai-recommend-card{transition:transform .16s ease,box-shadow .16s ease}.clai-recommend-card:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(15,23,42,.10)}.clai-recommend-card h4{margin:0 0 6px;font-size:18px}.clai-recommend-card h4 small{display:inline-block;color:#64748b;font-size:13px;margin-left:6px}.clai-character-card .clai-big-hanzi{color:#ef4444}.clai-analysis-result h3{margin-top:24px}.clai-analysis-result .clai-card h4{margin-top:0}.clai-analysis-mistakes li{margin-bottom:7px;line-height:1.55}
@media(max-width:760px){.clai-learning-grid,.clai-recommendation-grid{grid-template-columns:1fr}.clai-recall-item{padding:11px}.clai-analysis-result h3{font-size:20px}}

/* v0.9.2.1: actionable analysis UI */
.clai-character-card{cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;position:relative}
.clai-character-card:hover,.clai-character-card.is-expanded{transform:translateY(-2px);box-shadow:0 18px 42px rgba(15,23,42,.10);border-color:#bfdbfe!important}
.clai-click-actions{display:none;flex-wrap:wrap;gap:8px;margin-top:12px;padding-top:12px;border-top:1px dashed #dbe3ef}
.clai-character-card.is-expanded .clai-click-actions,.clai-character-card:focus-within .clai-click-actions{display:flex}
.clai-mini-action,.clai-related-open{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid #dbe3ef;border-radius:999px;background:#fff;color:#0f172a!important;text-decoration:none!important;font-size:13px;font-weight:800;line-height:1;padding:9px 12px;cursor:pointer;box-shadow:0 6px 14px rgba(15,23,42,.04);transition:transform .14s ease,background .14s ease,border-color .14s ease}
.clai-mini-action:hover,.clai-related-open:hover{background:#eff6ff;border-color:#bfdbfe;transform:translateY(-1px)}
.clai-mini-action.is-done{background:#dcfce7;border-color:#86efac;color:#166534!important}
.clai-card.is-collapsed > *:not(h4){display:none!important}.clai-card.is-collapsed h4:after{content:'  +';color:#2563eb}
.clai-related-open{margin-top:8px;padding:7px 10px;font-size:12px;color:#1d4ed8!important;background:#eff6ff;border-color:#bfdbfe}
.clai-toast{position:fixed;left:50%;bottom:28px;z-index:999999;transform:translate(-50%,16px);opacity:0;pointer-events:none;border:1px solid #bbf7d0;border-radius:999px;background:#f0fdf4;color:#166534;font-weight:800;padding:12px 16px;box-shadow:0 18px 50px rgba(15,23,42,.18);transition:opacity .18s ease,transform .18s ease}.clai-toast.is-visible{opacity:1;transform:translate(-50%,0)}
@media(max-width:760px){.clai-click-actions{display:flex}.clai-mini-action{font-size:12px;padding:8px 10px}.clai-toast{width:calc(100vw - 32px);text-align:center}}