@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600&display=swap');
:root{--blue:#2563eb;--ink:#13254a;--muted:#74819b;--bg:#f5f8ff;--line:#e6ecf5;--green:#0f9d91;--surface:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px 'DM Sans',system-ui,sans-serif}button,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #f59e0b;outline-offset:3px}button{border:0;background:none;color:inherit}a{color:inherit;text-decoration:none}.sidebar{position:fixed;inset:0 auto 0 0;width:232px;background:white;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:32px 20px;z-index:4}.brand{display:flex;gap:12px;align-items:center;font-size:17px;line-height:1.25;padding:0 10px 42px}.brand-icon{background:var(--blue);color:white;border-radius:12px;padding:8px 12px;font-size:26px}.nav-label{font-size:10px;letter-spacing:1.8px;color:#9ba7bc;margin:0 14px 15px}nav{display:flex;flex-direction:column;gap:7px}nav a{padding:14px 16px;display:flex;gap:14px;align-items:center;border-radius:10px;color:#78849a;font-weight:500}nav a.active{background:#edf3ff;color:var(--blue)}nav a i{font-style:normal;font-size:20px;width:20px}.side-note{margin:auto 12px 25px;padding:24px 10px;border-top:1px solid var(--line)}.side-note>span{font-family:'Noto Sans SC';font-size:27px;letter-spacing:5px;color:#afc4ed}.side-note p{font-size:12px;color:var(--muted);line-height:1.8}.profile{display:flex;align-items:center;text-align:left;gap:10px;border-top:1px solid var(--line);padding:20px 0 0;font-size:12px}.profile small{display:block;font-size:9px;color:var(--muted);margin-top:5px}.avatar{background:#e8effc;color:var(--blue);padding:11px 14px;border-radius:50%}.shell{margin-left:232px}header{height:81px;display:flex;justify-content:space-between;align-items:center;padding:0 44px;border-bottom:1px solid var(--line);background:#ffffffb3;font-size:12px;color:var(--muted)}.header-actions{display:flex;align-items:center;gap:24px}.header-actions button{background:#f2f5fa;border:1px solid var(--line);padding:9px 14px;border-radius:8px;min-width:145px;text-align:left}.local-badge{font-size:10px;color:var(--green)}main{max-width:1390px;padding:36px 44px 50px;margin:auto}.eyebrow{font-size:10px;letter-spacing:1.8px;color:var(--blue);font-weight:700}h1{font-size:30px;letter-spacing:-1px;margin:10px 0}h2{font-size:18px;margin:0 0 8px;letter-spacing:-.3px}h3{font-size:15px;margin:0 0 7px}p{line-height:1.7}.muted,.subtitle{color:var(--muted)}.subtitle{margin:0 0 28px;font-size:13px}.top-title{display:flex;justify-content:space-between;align-items:center}.date-chip{border:1px solid var(--line);background:white;padding:10px 14px;border-radius:8px;font-size:11px;color:var(--muted)}.dashboard{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:24px}.hero{border-radius:18px;background:#eaf1ff;position:relative;overflow:hidden;padding:31px;min-height:280px;border:1px solid #dce8ff;display:flex;align-items:center}.hero-copy{position:relative;z-index:1;width:68%}.pill{display:inline-block;border-radius:6px;background:white;color:var(--blue);font-size:10px;font-weight:700;padding:6px 9px}.hero h2{font-size:29px;line-height:1.28;margin:17px 0 12px}.hero p{font-size:12px;color:#65799c;max-width:310px}.primary{background:var(--blue);color:#fff;padding:12px 20px;border-radius:9px;font-weight:600;display:inline-flex;gap:22px;align-items:center}.primary:hover{background:#174ec6}.secondary{border:1px solid var(--line);background:white;padding:10px 16px;border-radius:9px;font-weight:500}.hero-art{position:absolute;right:-5px;bottom:0;width:220px;height:245px}.hero-art .circle{position:absolute;inset:12px 0 10px;border-radius:50%;background:#dde8fc}.hanzi-art{position:absolute;right:40px;top:10px;font:90px 'Noto Sans SC';color:#adc7f5;transform:rotate(-8deg)}.pagoda{position:absolute;bottom:0;right:40px;width:115px;height:140px}.roof{position:absolute;height:30px;background:#496fab;clip-path:polygon(50% 0,72% 60%,100% 90%,92% 100%,8% 100%,0 90%,28% 60%);width:115px;left:0}.roof:nth-child(2){top:40px;width:95px;left:10px}.roof:nth-child(3){top:78px;width:75px;left:20px}.tower{position:absolute;background:#9bb6dd;left:35px;top:25px;width:45px;height:115px;border-left:7px solid #c1d2ec;border-right:7px solid #c1d2ec}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0 28px}.stat{background:white;border:1px solid var(--line);border-radius:12px;padding:19px}.stat-icon{color:var(--blue);font-size:19px}.stat strong{display:block;font-size:25px;margin:9px 0 3px}.stat small{color:var(--muted);font-size:11px}.section-head{display:flex;justify-content:space-between;align-items:center;margin:27px 0 15px}.text-link{font-size:11px;color:var(--blue)}.card{background:white;border:1px solid var(--line);border-radius:14px;padding:23px}.right-col{display:flex;flex-direction:column;gap:20px}.target-head{display:flex;justify-content:space-between}.ring{width:125px;height:125px;border-radius:50%;margin:25px auto 15px;background:conic-gradient(var(--blue) var(--value),#edf2fa 0);display:grid;place-items:center}.ring>div{width:105px;height:105px;background:white;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-direction:column}.ring b{font-size:26px}.ring small{color:var(--muted);font-size:10px}.target p{text-align:center;color:var(--muted);font-size:11px}.progress-track{height:6px;background:#edf2fa;border-radius:6px;overflow:hidden}.progress-track span{display:block;height:100%;background:var(--blue);border-radius:6px}.review-card{background:#fff9ed;border-color:#fae9c8}.review-card .secondary{width:100%;border-color:#f1dba7;background:#fffdf7;color:#9b6b20;margin-top:10px}.review-card p{font-size:12px;color:#9a8663}.mini-label{font-size:10px;color:var(--muted)}.level-row{display:flex;align-items:center;gap:17px;margin:17px 0}.level-icon{font-size:19px;background:#edf3ff;color:var(--blue);padding:14px;border-radius:12px;font-weight:600}.grow{flex:1}.level-row p{font-size:11px;color:var(--muted);margin:4px 0 9px}.level-row .secondary{font-size:11px}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.quick{padding:20px 10px;background:white;border:1px solid var(--line);border-radius:12px;text-align:center}.quick span{display:block;font-size:23px;color:var(--blue);margin-bottom:10px}.quick small{display:block;color:var(--muted);font-size:10px;margin-top:6px}.word-day{text-align:center}.word-day .hanzi{font:43px 'Noto Sans SC';margin:15px 0 6px}.word-day .pinyin{color:var(--blue)}.word-day p{font-size:12px;color:var(--muted)}.word-day button{color:var(--blue);font-size:11px}footer{margin:0 44px;padding:20px 0;border-top:1px solid var(--line);font-size:10px;color:#9ca8bb;display:flex;justify-content:space-between}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.level-card{position:relative;min-height:215px}.level-card .number{font-size:45px;font-weight:700;color:#d9e5fa;float:right}.level-card p{font-size:12px;color:var(--muted);min-height:40px}.level-card .secondary{margin-top:14px}.notice{background:#edf3ff;padding:15px 18px;border-radius:10px;font-size:12px;color:#5774a4;line-height:1.7;margin:20px 0}.search{display:flex;gap:12px;margin:22px 0}.search input,input,select{padding:13px 15px;border:1px solid #dce4f1;border-radius:9px;background:white;color:var(--ink)}.search input{flex:1;min-width:0}.word-list{display:grid;gap:10px}.word-row{display:flex;align-items:center;gap:20px;background:white;border:1px solid var(--line);border-radius:12px;padding:17px 20px}.word-hanzi{font:25px 'Noto Sans SC';min-width:75px;text-align:left}.word-row .pinyin{color:var(--blue);font-size:12px}.word-row p{margin:4px 0;font-size:12px}.favorite{font-size:22px;color:#e3aa37;padding:8px}.lesson-wrap{max-width:780px;margin:auto}.lesson-word{text-align:center;margin:30px 0}.lesson-word .hanzi{font:70px 'Noto Sans SC'}.lesson-word p{font-size:20px;color:var(--blue)}.choices{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:25px 0}.choice{padding:20px;border:1px solid var(--line);background:white;border-radius:12px;text-align:left}.choice.selected{border-color:var(--blue);background:#eef4ff}.feedback{padding:18px;border-radius:10px;margin:20px 0;background:#e9f7f3;color:#137b66}.feedback.wrong{background:#fff0ef;color:#a64242}.lesson-bottom{display:flex;justify-content:space-between;align-items:center}.tabs{display:flex;gap:10px;margin:20px 0;flex-wrap:wrap}.tabs button{border:1px solid var(--line);padding:9px 15px;border-radius:20px;background:white}.tabs .active{background:var(--blue);color:white}dialog{border:1px solid var(--line);border-radius:20px;padding:32px;max-width:450px;width:90%;color:var(--ink)}dialog::backdrop{background:#13254a66}dialog .close{float:right;font-size:20px}dialog .hanzi{font:50px 'Noto Sans SC'}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 20px;border-radius:9px;display:none;z-index:10}.empty{padding:45px;text-align:center;color:var(--muted)}.form-row{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.reading{font:26px/2.1 'Noto Sans SC';letter-spacing:2px}.reading button{font:inherit;color:var(--blue);padding:0}.badge{font-size:10px;background:#edf4ff;border-radius:5px;padding:4px 7px;color:var(--blue)}@media(min-width:1500px){main{padding-top:50px}}@media(max-width:1150px){.sidebar{width:200px}.shell{margin-left:200px}main{padding:28px}.dashboard{grid-template-columns:1fr 245px;gap:18px}header{padding:0 28px}.hero{padding:24px}.hero 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