@font-face{font-family:"Source Han Sans CN";src:url("fonts/source-han-sans-cn.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
:root{--ink:#213b36;--muted:#77817a;--green:#204e41;--paper:#fffefa;--bg:#f4f3ed;--line:#dddff4;--red:#b94a3f;--blue:#447c9c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 "Source Han Sans CN","Microsoft YaHei","PingFang SC",sans-serif}button,select,textarea,input{font:inherit}button,select{cursor:pointer}button{border:1px solid #d8ddd5;background:transparent;border-radius:7px;padding:10px 15px;color:var(--ink);font-weight:600;transition:background .15s,transform .15s}button:hover{background:#e8ece4}button:active{transform:translateY(1px)}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #b99555;outline-offset:3px}button:disabled{opacity:.6;cursor:wait}.topbar{height:80px;border-bottom:1px solid #dce0d7;display:flex;justify-content:space-between;align-items:center;max-width:1320px;margin:auto;padding:0 44px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:19px;font-weight:800;letter-spacing:2px}.brand-mark{display:grid;place-items:center;width:34px;height:34px;background:var(--green);color:#faf9ed;font-size:19px;transform:rotate(-6deg);border-radius:5px}.brand-en{font-size:10px;letter-spacing:2px;font-weight:500;margin-left:3px;color:var(--muted)}.top-note{font-size:12px;color:var(--muted);letter-spacing:2px}.top-note i,.preview-label i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#47765a;margin-right:7px}main{max-width:1232px;margin:auto;padding:42px 44px 0}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}.eyebrow{font-size:10px;letter-spacing:2.4px;color:#8a8d75;font-weight:700;margin:0 0 12px}h1{font-size:38px;letter-spacing:-1px;line-height:1.3;margin:0;font-weight:800}h1 span{font-weight:400}.subtitle{color:#788179;margin:13px 0 0;font-size:14px}.a4-badge{display:flex;align-items:center;gap:13px;color:#7b857a;border:1px solid #d7dccf;border-radius:6px;padding:12px 18px;transform:rotate(3deg)}.a4-badge b{font-size:31px;line-height:1;font-weight:400}.a4-badge span{font-size:10px;line-height:1.7}.workspace{display:grid;grid-template-columns:268px minmax(0,1fr);gap:35px}.controls{padding:0 1px}.control-section{border-top:1px solid #d6dcd2;padding:23px 0 21px}.step-label{font-size:14px;font-weight:700;margin:0 0 22px}.step-label>span{font-size:10px;color:#8b998b;background:#e7ebe1;border-radius:50%;padding:5px 6px;margin-right:9px}label:not(.check-label):not(.sr-only){display:block;font-size:12px;font-weight:700;margin:18px 0 8px}select{background:#fffefa;border:1px solid #d4dbd0;width:100%;padding:11px 12px;border-radius:6px;color:var(--ink)}.hint{color:#858b80;font-size:11px;margin:7px 0}.text-button{padding:4px 0;border:0;font-size:11px;font-weight:500}.text-button:hover{background:transparent;color:#8d6139;text-decoration:underline}.primary{background:var(--green);border-color:var(--green);color:#fffefa}.primary:hover{background:#2e6253}.generate{width:100%;margin-top:23px;padding:12px;font-size:14px}.generate span{font-size:22px;vertical-align:middle;line-height:1;margin-right:5px}.check-label{display:flex;align-items:center;font-size:12px;margin:18px 0;gap:5px;flex-wrap:wrap}.check-label span{font-size:10px;color:var(--muted);margin-left:auto}input[type=checkbox]{accent-color:var(--green);width:15px;height:15px}.print-tip{display:flex;gap:10px;background:#e9ede3;border-radius:6px;padding:12px;margin:18px 0;color:#6c7966}.print-tip span{font-size:21px}.print-tip p{margin:0;font-size:11px;line-height:1.9}.export{width:100%;padding:12px;background:#294338}.button-pair{display:flex;gap:8px;margin-top:8px}.button-pair button{flex:1;font-size:12px}.export-hint{font-size:10px;text-align:center;margin-top:10px}.rules{border-top:1px solid #d6dcd2;padding:18px 0;font-size:12px}.rules summary{cursor:pointer;font-weight:600}.rules ol{padding-left:18px;color:#6a786d;font-size:11px;line-height:1.9}.rules a{color:var(--green);font-size:11px}.preview-area{background:#e9ece5;border:1px solid #dde2d7;border-radius:10px;padding:17px 26px 14px;min-width:0}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:17px}.preview-label{font-size:11px;font-weight:600}.preview-label span{font-family:monospace;font-size:10px;margin-left:9px;color:#919b8b}.paper-wrap{max-width:600px;margin:auto;box-shadow:0 8px 22px #273a2c13,0 1px 3px #273a2c14;background:white}canvas{display:block;width:100%;height:auto}.preview-bottom{display:flex;align-items:center;justify-content:space-between;max-width:600px;margin:15px auto 0;gap:10px}#firstBadge{font-size:11px}#reveal{padding:6px 12px;font-size:11px;background:#f5f6ef}.preview-caption{text-align:center;font-size:10px;color:#89917f;margin:11px 0 0}.word-access{font-size:11px;color:#7c8878;margin:10px auto 0;max-width:600px}.word-access summary{cursor:pointer}#wordList{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin-top:8px}footer{display:flex;justify-content:space-between;gap:15px;margin-top:35px;padding:24px 0;color:#909789;border-top:1px solid #dce0d7;font-size:10px}footer span:first-child{letter-spacing:1px}dialog{border:1px solid #dde2d7;border-radius:14px;padding:30px;background:#fafbf6;color:var(--ink);max-width:620px;width:calc(100% - 32px);max-height:90vh;box-shadow:0 25px 90px #112a2b33}dialog::backdrop{background:#16372966;backdrop-filter:blur(3px)}h2{margin:0;font-size:24px;font-weight:600}.dialog-title{display:flex;justify-content:space-between;align-items:start}.close{border:0;padding:0 5px;font-size:26px;line-height:1}dialog p:not(.eyebrow):not(.error){color:#7b877a;font-size:12px}textarea{width:100%;resize:vertical;min-height:130px;border:1px solid #cbd5c7;background:white;color:var(--ink);padding:12px;border-radius:6px}.dialog-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:22px}.error{color:#a63d31;font-size:12px;min-height:1em}#editGrid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}#editGrid label{margin:0;font-size:9px;color:#84917d}#editGrid input{width:100%;padding:9px 4px;text-align:center;border:1px solid #ced9c9;background:white;border-radius:5px;color:var(--ink)}#toast{position:fixed;bottom:30px;left:50%;transform:translate(-50%,15px);opacity:0;pointer-events:none;background:#213b36;color:white;border-radius:7px;padding:12px 22px;max-width:90%;transition:.2s;z-index:20;font-size:13px}#toast.show{opacity:1;transform:translate(-50%,0)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}#printArea{display:none}@media(min-width:1400px){main{max-width:1320px}.workspace{grid-template-columns:286px minmax(0,1fr);gap:42px}}@media(max-width:850px){.topbar{padding:0 24px;height:66px}main{padding:30px 24px 0}h1{font-size:30px}.a4-badge{display:none}.workspace{grid-template-columns:225px minmax(0,1fr);gap:20px}.preview-area{padding:15px}.preview-toolbar{flex-wrap:wrap}.brand-en{display:none}}@media(max-width:640px){.top-note{font-size:10px}.intro{margin-bottom:24px}h1{font-size:28px}.subtitle{font-size:12px;max-width:260px}.workspace{display:flex;flex-direction:column;gap:20px}.controls{display:grid;grid-template-columns:1fr 1fr;gap:15px}.control-section{padding:17px 0 0}.step-label{margin-bottom:15px}.check-label span{display:none}.print-tip{margin:12px 0;padding:8px;min-height:65px}.print-tip span{display:none}.generate{margin-top:15px}.rules{grid-column:1/-1;padding:12px 0}.preview-area{padding:13px 12px}.preview-bottom{gap:5px}.preview-caption{font-size:9px}footer{flex-wrap:wrap;font-size:9px;margin-top:25px}dialog{padding:22px}h2{font-size:20px}#editGrid{gap:5px}#editGrid input{font-size:12px}.export-hint{font-size:9px}.button-pair button{padding:9px 3px;font-size:11px}}@page{size:A4 landscape;margin:0}@media print{html,body{margin:0!important;padding:0!important;width:297mm;height:210mm;background:white}body>*{display:none!important}#printArea{display:block!important;width:297mm;height:210mm;overflow:hidden}#printArea img{display:block;width:297mm;height:210mm;print-color-adjust:exact;-webkit-print-color-adjust:exact}}

.ai-open{display:block;width:100%;margin:10px 0 20px;background:#e5ebdd;border:1px solid #d4ddc9;font-size:12px;padding:10px}.ai-open:hover{background:#dce6d3}#difficultyName{float:right;color:#85916f;font-size:11px}#difficulty{width:100%;accent-color:#375d43;margin:8px 0 2px;cursor:pointer}.range-labels{display:flex;justify-content:space-between;font-size:10px;color:#8b947f}.difficulty-note{font-size:10px;line-height:1.8;color:#8f8b76;margin:8px 0 17px}.prompt-options{display:grid;grid-template-columns:1fr 1fr;gap:15px}#promptText{font-size:11px;line-height:1.7;background:#eef1e7;min-height:150px}#promptTheme{min-height:75px}.preview-area{align-self:start}#promptDialog .dialog-actions{position:sticky;bottom:-30px;background:#fafbf6;padding:14px 0;margin-top:10px}@media(max-width:640px){.controls{display:block}.control-section{padding-bottom:15px}.check-label span{display:inline}.print-tip{min-height:0}.ai-open{margin-bottom:16px}#difficulty{height:25px}#promptDialog .dialog-actions{bottom:-22px}.preview-label span{display:block;margin-left:15px;font-size:9px}}

#keyDialog{max-width:780px}#keyPaper{width:100%;height:auto}