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span{color:#665c50;line-height:1.5}.standard-layout{grid-template-columns:310px minmax(0,1fr);min-height:780px;display:grid}.standard-layout>nav{background:#f6f0e7;border-right:1px solid #dfd3c3;max-height:900px;padding:15px;overflow:auto}.standard-layout>nav button{text-align:left;background:0 0;border:1px solid #0000;border-radius:12px;grid-template-columns:35px 1fr;gap:10px;width:100%;margin-bottom:5px;padding:10px;display:grid}.standard-layout>nav button:hover,.standard-layout>nav button.active{background:#fff;border-color:#d8cab9}.standard-layout>nav button.active{box-shadow:0 5px 16px #51391610}.standard-layout>nav i{color:#7a5017;background:#e8d8c0;border-radius:50%;place-items:center;width:31px;height:31px;font-style:normal;font-weight:900;display:grid}.standard-layout>nav button.active i{background:var(--red);color:#fff}.standard-layout>nav span{min-width:0}.standard-layout>nav b,.standard-layout>nav small{display:block}.standard-layout>nav b{font-size:15px}.standard-layout>nav small{color:var(--muted);margin-top:3px;font-size:10px;line-height:1.35}.book-reader{min-width:0;padding:24px}.book-reader>header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.book-reader>header span{letter-spacing:.13em;color:var(--red);font-size:10px;font-weight:900}.book-reader>header h3{margin:4px 0;font-size:29px}.book-reader>header p{color:var(--muted);margin:0}.source-badge{color:var(--jade);background:#e9f6ef;border-radius:30px;padding:8px 11px;font-size:11px;font-weight:900}.book-tabs{gap:8px;margin:20px 0 10px;display:flex}.book-tabs button{background:#fff;border:1px solid #d8cbbb;border-radius:11px;flex:1;padding:11px;font-weight:900}.book-tabs button.active{background:var(--jade);border-color:var(--jade);color:#fff}.book-tools{color:var(--muted);background:#f6f0e7;border-radius:9px 9px 0 0;justify-content:space-between;align-items:center;gap:15px;padding:9px 12px;font-size:11px;display:flex}.book-tools a{color:var(--jade);font-weight:900}.book-reader iframe{background:#eee;border:1px solid #d8cbbb;width:100%;height:620px;display:block}.accuracy-note{border-left:5px solid var(--gold);background:#fff8e7;border-radius:0 11px 11px 0;margin-top:15px;padding:13px 15px}.accuracy-note p{color:var(--muted);margin:5px 0 0;font-size:12px;line-height:1.55}@media (width<=900px){.standard-hero{flex-direction:column;align-items:flex-start}.standard-hero aside{width:100%}.standard-layout{grid-template-columns:1fr}.standard-layout>nav{border-bottom:1px solid #dfd3c3;border-right:0;gap:7px;max-height:none;display:flex;overflow-x:auto}.standard-layout>nav button{min-width:210px;margin:0}.book-reader iframe{height:560px}}@media (width<=600px){.standard-page{padding:20px 8px}.standard-hero{padding:22px 18px}.version-alert{flex-direction:column;align-items:flex-start;gap:5px;padding:13px 17px}.book-reader{padding:16px}.book-reader>header,.book-tabs{flex-direction:column}.book-tools{flex-direction:column;align-items:flex-start}.book-reader iframe{height:480px}}.exercise-kind{background:var(--cream);color:var(--red);border-radius:30px;margin-bottom:10px;padding:5px 9px;font-size:11px;font-weight:900;display:inline-block}.text-answer{gap:8px;margin-top:14px;display:flex!important}.text-answer input{border:1px solid #d8cfc3;border-radius:10px;flex:1;padding:12px}.text-answer button{color:#fff;background:var(--jade)!important}.answer-note{color:var(--muted);margin-top:9px;display:block}.teacher-export{background:var(--jade);color:#fff;border-radius:18px;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;padding:20px 24px;display:flex}.teacher-export h3,.teacher-export p{margin:0}.teacher-export p{opacity:.86;margin-top:5px}.teacher-export a{color:var(--jade);white-space:nowrap;background:#fff;border-radius:10px;padding:12px 16px;font-weight:900}.wrong-detail{border:1px solid var(--line);background:#fff;border-radius:18px;margin-top:24px;overflow:hidden}.wrong-detail>h3{margin:0;padding:18px}.wrong-grid{border-top:1px solid var(--line);grid-template-columns:1.3fr .45fr 2fr 1.5fr 1fr;align-items:center;gap:12px;padding:13px 16px;font-size:13px;display:grid}.wrong-grid.head{background:#f2e8d9;font-weight:800}.wrong-grid>span:first-child{flex-direction:column;display:flex}.wrong-grid small{color:var(--muted)}.wrong-answer{color:var(--red);font-weight:800}.wrong-grid time{color:var(--muted)}@media (width<=800px){.teacher-export{flex-direction:column;align-items:flex-start}.wrong-detail{overflow-x:auto}.wrong-grid{min-width:850px}.text-answer{flex-direction:column}}.workbook-examples{border-bottom:1px dashed #d8cbbb;gap:12px;margin-bottom:24px;padding-bottom:24px;display:grid}.example-grammar{color:var(--jade);background:#eef7f3;border:1px solid #9bc6b7;border-radius:30px;margin-top:7px;padding:5px 9px;font-size:11px;font-style:normal;font-weight:900;display:inline-block!important}.source-books-30{padding:20px}.source-title{background:linear-gradient(135deg,#fff4df,#edf7f2);border:1px solid #deceb8;border-radius:16px;justify-content:space-between;align-items:center;gap:20px;padding:19px;display:flex}.source-title span{letter-spacing:.12em;color:var(--red);font-size:10px;font-weight:900}.source-title h3{margin:5px 0}.source-title p{color:var(--muted);margin:0;font-size:12px}.source-title>b{background:var(--red);color:#fff;border-radius:50%;place-items:center;min-width:58px;height:58px;font-size:20px;display:grid}.source-books-30 iframe{background:#eee;border:1px solid #d8cbbb;width:100%;height:650px;display:block}.source-books-30 .book-tabs{margin-top:15px}@media (width<=650px){.source-books-30{padding:8px}.source-title{align-items:flex-start}.source-books-30 iframe{height:500px}}.professional-grammar{padding:24px!important}.professional-grammar>h3{color:#263c39;margin:0 0 18px;font-size:23px}.grammar-concept,.grammar-usage>div{background:#fff;border:1px solid #ddd2c5;border-radius:12px;padding:14px 16px}.grammar-concept>b,.grammar-usage b,.grammar-examples>b{letter-spacing:.1em;color:var(--red);margin-bottom:6px;font-size:10px;display:block}.grammar-concept p,.grammar-usage p{color:#4f5e5c;margin:0;line-height:1.65}.professional-grammar .structure{background:#fff3ef;border:2px solid #df8c80;margin:12px 0}.professional-grammar .structure span{font-family:Arial,Noto Sans SC,sans-serif;font-size:17px}.grammar-usage{grid-template-columns:1fr 1fr;gap:12px;display:grid}.grammar-usage>div:last-child{background:#fff9e9;border-color:#ead39b}.grammar-examples{margin-top:16px}.professional-grammar .mini-example{border-top:1px solid #e5dbcf;grid-template-columns:30px 1fr auto;align-items:center;gap:12px;padding:13px 0;display:grid}.professional-grammar .mini-example>i{width:26px;height:26px;color:var(--jade);background:#eaf5f0;border-radius:50%;place-items:center;font-style:normal;font-weight:900;display:grid}.professional-grammar .mini-example strong,.professional-grammar .mini-example small,.professional-grammar .mini-example span{display:block}.professional-grammar .mini-example strong{font-size:19px}.professional-grammar .mini-example small{color:var(--red);margin:3px 0}.professional-grammar .mini-example span{color:var(--muted);font-size:13px}@media (width<=700px){.grammar-usage{grid-template-columns:1fr}.professional-grammar .mini-example{grid-template-columns:28px 1fr}.professional-grammar .mini-example .voice{grid-column:2}}.character-profile{grid-template-columns:95px repeat(2,minmax(0,1fr));gap:9px;margin:14px 0;display:grid}.character-profile>div{background:#fff;border:1px solid #ded2c4;border-radius:11px;flex-direction:column;gap:4px;padding:11px;display:flex}.character-profile .character-focus{background:linear-gradient(145deg,#fff4df,#edf7f2);grid-row:span 2;justify-content:center;align-items:center}.character-focus>b{color:var(--red);font-size:50px;line-height:1}.character-focus>span{color:var(--jade);font-size:13px;font-weight:900}.character-profile small{letter-spacing:.08em;color:var(--red);font-size:9px;font-weight:900}.character-profile strong{font-size:13px;line-height:1.45}.character-profile span{color:var(--muted);font-size:10px}.character-note{border-left:4px solid var(--gold);background:#fff7df;border-radius:0 9px 9px 0;padding:10px 12px;line-height:1.5;color:#655a49!important;margin:0 0 13px!important;font-size:11px!important}@media (width<=700px){.character-profile{grid-template-columns:80px 1fr}.character-profile .character-focus{grid-row:span 3}.character-profile>div:nth-child(5){grid-column:1/-1}.character-focus>b{font-size:42px}}.character-profile .radical-meaning{background:#eef7f3;border-color:#abd0c2}.radical-meaning em{color:var(--jade);margin-top:3px;font-size:10px;font-style:normal;font-weight:900}.compact-analysis{grid-template-columns:1fr!important;padding:12px 14px!important}.compact-analysis small{margin-top:0!important}.radical-summary{padding:22px}.radical-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.radical-grid article{background:#fff;border:1px solid #dfd3c5;border-radius:15px;grid-template-columns:70px 1fr;gap:14px;padding:16px;display:grid}.radical-symbol{width:66px;height:66px;color:var(--red);background:linear-gradient(145deg,#fff3dc,#eaf6f1);border-radius:15px;place-items:center;font-family:Noto Sans SC,SimSun,sans-serif;font-size:39px;display:grid}.radical-grid h4{color:var(--jade);margin:0;font-size:16px}.radical-grid b{margin:4px 0;font-size:13px;display:block}.radical-grid p{color:var(--muted);margin:5px 0 9px;font-size:11px;line-height:1.5}.radical-grid span,.radical-grid small{border-top:1px dashed #ddd1c3;padding-top:7px;font-size:11px;line-height:1.5;display:block}.radical-grid small{color:var(--muted);border:0;padding-top:4px}@media (width<=800px){.radical-grid{grid-template-columns:1fr}}@media (width<=460px){.radical-summary{padding:10px}.radical-grid article{grid-template-columns:52px 1fr;padding:12px}.radical-symbol{width:50px;height:50px;font-size:30px}}.teacher-card{grid-template-columns:minmax(0,1fr) auto}.teacher-card>div{min-width:0}.teacher-card>div b{white-space:normal}.full-text{background:#fff;border:1px solid #ded4c7;border-radius:18px;margin-top:20px;padding:22px}.full-text .dialogue-line>div>small{color:var(--jade);font-size:12px;font-weight:900}.full-text .dialogue-line em{color:var(--red);font-size:14px;font-style:normal}.dialogue-exercises{border-top:10px solid #f5f1ea}.pron-target>span{color:var(--red);margin:7px 0;font-size:16px;display:block}.rhyme-card{border:1px solid #dccfbe;border-top:5px solid var(--red);background:linear-gradient(145deg,#fffaf1,#eef7f3);border-radius:18px;margin-top:22px;overflow:hidden}.rhyme-card>header{border-bottom:1px solid #dfd4c6;justify-content:space-between;align-items:center;gap:18px;padding:20px 22px;display:flex}.rhyme-card header span{letter-spacing:.1em;color:var(--red);font-size:10px;font-weight:900}.rhyme-card header h3{margin:5px 0;font-size:22px}.rhyme-card header p{color:var(--muted);margin:0;font-size:12px}.rhyme-lines{padding:4px 22px 16px}.rhyme-line{border-bottom:1px dashed #d8cbbb;grid-template-columns:30px minmax(0,1fr) auto;align-items:center;gap:13px;padding:15px 0;display:grid}.rhyme-line:last-child{border-bottom:0}.rhyme-line>i{background:var(--jade);color:#fff;border-radius:50%;place-items:center;width:27px;height:27px;font-style:normal;font-weight:900;display:grid}.rhyme-line b,.rhyme-line em,.rhyme-line span{display:block}.rhyme-line b{font-family:Noto Sans SC,SimSun,serif;font-size:22px}.rhyme-line em{color:var(--red);margin:4px 0;font-style:normal}.rhyme-line span{color:var(--muted);font-size:13px}@media (width<=650px){.rhyme-card>header{flex-direction:column;align-items:flex-start}.rhyme-line{grid-template-columns:28px 1fr}.rhyme-line .voice{grid-column:2;justify-self:start}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}