:root{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#24302a;background:#f4f1ea;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 12% 8%,#dbe9e0 0,transparent 30%),linear-gradient(135deg,#faf8f1,#edf2ee)}button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.shell{min-height:100vh;display:grid;grid-template-columns:minmax(300px,1fr) minmax(380px,520px);gap:64px;align-items:center;max-width:1180px;margin:auto;padding:48px}.brand-panel{padding:32px}.brand-mark{display:grid;place-items:center;width:70px;height:70px;border-radius:22px;background:#315f4c;color:#fff;font:700 30px serif;box-shadow:0 16px 36px #315f4c30}.eyebrow{margin:24px 0 8px;color:#96712e;font-size:13px;font-weight:700;letter-spacing:.14em}.brand-panel h1,.admin-head h1{font:700 clamp(36px,5vw,64px)/1.12 Georgia,"Songti 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.eyebrow,.mobile-head .eyebrow{margin:0 0 6px}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.summary-grid div{padding:18px;text-align:center;background:#f7f8f5;border-radius:15px}.summary-grid strong,.summary-grid span{display:block}.summary-grid strong{font-size:25px;color:#315f4c}.summary-grid span{margin-top:5px;color:#7c8580;font-size:12px}.section-head{margin:28px 0 16px}.section-head.compact{margin:0 0 16px}.inline-form{display:flex;gap:10px;margin:16px 0}.class-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}.class-item{display:flex;align-items:center;gap:14px;border:1px solid #e1ded5;border-radius:17px;padding:18px;background:#fff}.class-icon{display:grid;place-items:center;flex:0 0 52px;height:52px;border-radius:15px;background:#e7efe9;color:#315f4c;font-weight:700}.class-copy{min-width:0;flex:1}.class-item h4{font-size:18px;margin:0 0 7px}.class-item p{margin:0;color:#7b837f;font-size:12px}.class-actions{display:flex;align-items:center;gap:7px}.text-danger,.student-delete{padding:7px;background:transparent;color:#a35b4a;font-size:12px}.empty{padding:28px;text-align:center;color:#7b8884;background:#f7f8f5;border-radius:14px}.class-view{grid-column:1/-1;width:100%;max-width:920px;margin:auto}.mobile-head{padding:8px 2px 18px}.icon-button{width:44px;height:44px;border-radius:14px;background:#fff;color:#315f4c;font-size:34px;line-height:40px}.mobile-head>div{flex:1}.sync-banner{display:flex;align-items:center;gap:12px;margin-bottom:18px;padding:13px 16px;border-radius:14px;background:#eaf3ed;color:#37614f;font-size:13px}.sync-banner[data-state="pending"]{background:#fff4d8;color:#886b31}.sync-banner[data-state="pending"] i{background:#d49c32}.sync-banner[data-state="error"]{background:#f9e9e5;color:#a34d3c}.sync-banner[data-state="error"] i{background:#c15d48}.add-student-form{padding:20px;margin-bottom:18px}.student-form-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px}.form-actions{display:flex;gap:10px;margin-top:16px}.class-toolbar{display:flex;gap:12px;margin-bottom:18px}.search-field{display:flex;align-items:center;flex:1;gap:10px;padding:0 14px;border:1px solid #dedbd2;border-radius:14px;background:#fff}.search-field input{border:0;background:transparent;box-shadow:none;padding-left:0}.search-field span{color:#78827c;font-size:25px}.student-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.student-card{padding:19px}.student-head{display:flex;align-items:center;gap:12px}.student-avatar{display:grid;place-items:center;flex:0 0 48px;height:48px;border-radius:50%;background:#e7efe9;color:#315f4c;font-size:13px;font-weight:700}.student-copy{min-width:0;flex:1}.student-copy h3{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:17px}.student-copy p{margin:5px 0 0;color:#7d8581;font-size:12px}.score-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:17px;padding-top:16px;border-top:1px solid #edeae2}.score-box>span{color:#78817c;font-size:12px}.score-box>strong{display:block;margin:4px 0 11px;color:#315f4c;font-size:27px}.score-box.coins>strong{color:#a87320}.score-actions{display:flex;gap:5px}.score-actions button{flex:1;min-width:0;border:0;border-radius:8px;padding:7px 2px;background:#eff1ee;color:#4f5b54;font-size:12px}.score-actions .score-plus{background:#e5efe9;color:#315f4c}.score-actions .coin-plus{background:#fff0d5;color:#9a6515}.records-drawer{margin-top:20px;padding:20px}.record-list{display:grid;gap:10px}.record-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 2px;border-bottom:1px solid #eeeae2}.record-item:last-child{border-bottom:0}.record-item p{margin:5px 0 0;color:#7b8580;font-size:12px}.admin-shell{max-width:1280px;margin:auto;padding:36px}.admin-head{margin-bottom:28px}.admin-head h1{font-size:42px}.link-button{text-decoration:none}.admin-login{max-width:720px;padding:28px;margin:80px auto}.admin-login h2{margin-top:0}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}.stat{padding:22px;border:1px solid #d0ded8;border-radius:18px;background:#fff}.stat span{display:block;color:#71817c;font-size:14px}.stat strong{display:block;margin-top:8px;font-size:32px;color:#315f4c}.import-card,.codes-card{padding:24px;margin-bottom:20px}.admin-form{display:grid;grid-template-columns:2fr 1fr 1fr;gap:14px;align-items:end}.admin-form .wide{grid-column:1/-1}.filters{justify-content:flex-start;margin-bottom:18px}.filters input{max-width:390px}.filters select{max-width:180px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:850px}th,td{text-align:left;border-bottom:1px solid 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@media(max-width:390px){.class-actions{display:block}.class-actions .primary{margin-bottom:5px}.score-grid{gap:12px}.score-actions button{font-size:11px}.mobile-head .primary{padding:8px 10px}}
